I visited Costco for the first time in over two decades with David and Susan Schwartz, two of Costco's biggest fans.Maria Noyen/Business Insider
- David and Susan Schwartz are two of Costco's biggest fans.
- The NYC-based couple has visited over 200 stores and co-wrote a book based on their travels.
As my car pulled up to the Costco warehouse in Brooklyn, New York, I felt a wave of nostalgia wash over me.
The last time I'd set foot in a Costco, I couldn't have been older than 6 or 7 and was accompanied by my mom.
This time was different. This time, I was venturing back into Costco with two of its biggest fans: David and Susan Schwartz.
For the last seven years, the New York City-based couple has traveled to over 200 Costco locations around the world to produce their first co-written book, "The Joy of Costco: A Treasure Hunt from A to Z."
They love Costco so much that they once told me it was one of the first things they bonded over when they started dating in 2002.
"It's my happy place," Susan, who previously worked in marketing for Nabisco and at a bakery, said.
A few minutes after I arrived, I met Susan and David outside of the entrance. Smiling widely and brimming with excitement, almost as if they were two kids about to enter a candy store, the pair reinvigorated my Costco curiosity. Together, we set out to explore the warehouse, where I learned several surprising things that I never would have noticed without having them there as tour guides. Take a look.