In 2001, three web designers built a quirky email tool called Mailchimp.

It wasn’t their main business.

It wasn’t even meant to make real money.

For years, Ben Chestnut and his partners survived on web-design gigs, while Mailchimp earned just enough to cover lunch.

Then…one surprising spreadsheet changed everything.

In this episode, Ben reveals:

• The decision that tripled their revenue overnight
• How a mispronunciation on the world's biggest podcast turned into a marketing masterstroke
• How a painful wake-up call about leadership reshaped the company’s culture

Listen now to hear how guerrilla billboards, a monkey logo, and a string of improbable breaks built one of the most recognizable names in tech.

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Ring founder Jamie Siminoff joins Guy on the Advice Line, where they answer questions from three founders about balancing short- and long-term goals.

Today, we meet Vico, an industrial designer in southern California who's launching a crowdfunding campaign for his patented ergonomic desk. Then Iyin, a Baltimore-based product specialist seeking to balance accessibility and profitability for her ethically-sourced chocolate brand. And Franchesca, an Atlanta area educator deliberating whether to pursue small-business certifications for her motivational classroom posters.

Thank you to the founders of ErgoFlex Desk, Luji's Chocolate, and Thrive12 for being a part of a show.

If you’d like to be featured on a future Advice Line episode, leave us a one-minute message that tells us about your business and a specific question you’d like answered. Send a voice memo to hibt@id.wondery.com or call 1-800-433-1298.

And be sure to listen to Ring’s founding story as told by Jamie on the show in 2020.

This episode was produced by Carla Esteves with music by Ramtin Arablouei. It was edited by John Isabella. Our audio engineer was Neal Rauch.

You can follow HIBT on X & Instagram and sign up for Guy's free newsletter at guyraz.com.

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Amy Errett had a successful career in finance and venture capital before taking a leap into an entirely new business: hair color. When her wife complained about the indignities of coloring her hair at home, Amy realized the sector was ripe for a makeover. At age 56, she dove into the minutiae of dyes and developers, launching her own formula in 2013, and naming it after her daughter. Madison Reed’s early successes were marred by a management meltdown, when Amy had to break with three of her co-founders—an experience she describes as one of the most difficult of her life. Today Madison Reed is available in thousands of stores across the US, and runs nearly 100 of its own salons.

This episode was produced by Sam Paulson with music composed by Ramtin Arablouei. It was edited by Neva Grant with research by Iman Maani. Our engineers were Patrick Murray and Kwesi Lee.

You can follow HIBT on X & Instagram and sign up for Guy's free newsletter at guyraz.com or on Substack.

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In 2021, Daniel Humm shook up the dining world by making his 3-Michelin-star restaurant, Eleven Madison Park, 100% plant-based.

No meat. No butter. No cream.

It was a first in fine dining, igniting global headlines, industry backlash, and endless debate.

Now, in an exclusive podcast conversation with Guy Raz, Daniel shares his next bold decision—he's reintroducing animal products. Daniel shares what he learned from his years of plant-based cooking and how the experiment forever changed his creative vision.

This is a story about risk, reinvention, and the relentless pursuit of excellence.

In this episode:

• How a creative rut at the peak of his career sparked a radical transformation.
• The hidden economics of running a world-class restaurant without meat.
• The backlash—and surprising supporters—of the plant-based pivot.
• Why EMP will remain 90% plant-based, but welcome more people back to the table.
• What Daniel believes is the future of fine dining.

Listen to the original 2021 HIBT episode with Daniel Humm: https://wondery.com/shows/how-i-built-this/episode/10386-eleven-madison-park-daniel-humm/

Follow How I Built This:

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Website → guyraz.com

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Crumbl may be a cookie business – but Jason McGowan turned it into a fast-growing restaurant chain by building it like a tech startup. He and co-founder Sawyer Hemsley meticulously A/B tested the recipe, launched a delivery app early on, and went viral with weekly drops of wild new flavors like bubblegum and Almost Everything Bagel. In just eight years, Crumbl has opened over 1,000 stores, and has dominated the cookie conversation on social media, with more TikTok followers than Starbucks, Domino’s, and Taco Bell combined.

This episode was produced by Alex Cheng with music composed by Ramtin Arablouei. It was edited by Neva Grant with research help from Carla Estevez. Our engineers were Patrick Murray and Jimmy Keeley.

You can follow HIBT on X & Instagram, and email us at hibt@id.wondery.com. Sign up for Guy’s free newsletter at guyraz.com or on Substack.

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Chesapeake Bay Candle and Blueme founder Mei Xu joins Guy on the Advice Line to answer questions from three early-stage founders. Plus, Mei shares the importance of businesses meeting people everywhere they shop.

First, Sasha, who started a gourmet pot pie company in Brooklyn, New York, asks how to find the right co-founder who can do the things she can’t. Then, Tara from Dubai, Saudi Arabia wants to know whether to market her towel dress directly to consumers. And finally, Lindsay in Grand Rapids, Michigan needs advice on how to get her online curriculum in front of more school districts.

Thank you to the founders of Aunt Ethel’s Pot Pies, Dry Dolly, and Math Medic for being a part of our show.

If you’d like to be featured on a future Advice Line episode, leave us a one-minute message that tells us about your business and a specific question you’d like answered. Send a voice memo to hibt@id.wondery.com or call 1-800-433-1298.

And be sure to listen to the Chesapeake Bay Candle story as told by Mei on the show in 2017.

This episode was produced by Kerry Thompson with music by Ramtin Arablouei. It was edited by Andrea Bruce. Our audio engineer was Kwesi Lee.

You can follow HIBT on X & Instagram and sign up for Guy's free newsletter at guyraz.com and on Substack.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Long before he became famous as the sharp-tongued TV personality who launched the careers of pop stars, Simon Cowell was a rebellious teenager who dropped out of school and started his career in the mailroom at EMI. After a failed business left him nearly bankrupt, he found success by zigging where others zagged—initially by selling hit records based on TV shows like Power Rangers and WrestleMania. Eventually Simon got behind the TV camera himself, where his brutally honest feedback on shows like American Idol and The X Factor made him a household name. Today, through his company Syco Entertainment, Simon continues to discover new talent. His latest challenge: an upcoming Netflix show where he’ll try to build a boy band from scratch.

This episode was produced by Josh Lash, and edited by Neva Grant, with research by Iman Maani. Our audio engineers were Patrick Murray and Jimmy Keeley.

You can follow HIBT on X and Instagram, and email us at hibt@id.wondery.com. Sign up for Guy's newsletter at guyraz.com or Substack.

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Isaac Larian is the founder of MGA Entertainment, the company behind Bratz and LOL Surprise dolls. This week, he joins Guy on Advice Line to answer questions from three early-stage entrepreneurs. Plus, Isaac talks about the effects of tariffs on the toy industry.

First, we meet Meghan from Nashville, who finds that the customer for her educational toys may not be who she thought. Then, Libie from New York wants to grow her orthopedic cork insole business and to expand her customer base. And finally, Robin from Steamboat Springs gets advice about first impressions for her kid-exclusive outdoor apparel company.

Thank you to the founders of T is for Tot, Fulton, and Town Hall Outdoor Co. for being a part of our show.

If you’d like to be featured on a future Advice Line episode, leave us a one-minute message that tells us about your business and a specific question you’d like answered. Send a voice memo to hibt@id.wondery.com or call 1-800-433-1298.

And be sure to listen to Isaac tell the story of how MGA Entertainment was founded during his first visit to the show back in 2024.

This episode was produced by J.C. Howard with music by Ramtin Arablouei. It was edited by Andrea Bruce. Our audio engineer was Jimmy Keeley.

You can follow HIBT on Twitter & Instagram and sign up for Guy's free newsletter at guyraz.com and on Substack.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.