My Mulebuy Spreadsheet Saved My Wallet – Here’s How I Stopped Impulse Buying Okay, confession time: I used to be that person who’d see a “limited edition” drop at 3 AM and wake up to a credit card alert that made my soul leave my body. As a freelance graphic designer who works from my tiny Brooklyn apartment, my income is about as predictable as subway delays. But my shopping habits? They were on a one-way trip to financial regretville. Then, six months ago, I hit my breaking point. I opened my closet and realized I owned seven nearly identical black turtlenecks. SEVEN. That’s when my best friend Maya, who…