I still remember the day I walked into a flagship store in Milan, tried on a pair of limited-edition sneakers, and nearly choked on the price tag. 450 euros for shoes that retailed at 150 in China? That moment of disbelief sparked my obsession with finding better ways to shop. That’s when I stumbled upon the mulebuy spreadsheet, and honestly, it changed everything. Let’s rewind to last spring. I’d just moved to Berlin for a freelance styling gig, and my budget was tighter than a thrifted blazer. I wanted to keep my feed fresh without breaking the bank. Scrolling through TikTok, I saw a creator casually mention a Google Sheet…