Expert Buyer Q&A: Using Kakobuy Spreadsheet for Spy Optic Beachwear on Pinduoduo Q: What is the Kakobuy Spreadsheet and how does it help with purchasing Spy Optic beachwear? As an experienced buyer, I’ve found the… Pro Buyer Guide: Leveraging Kakobuy Spreadsheet for Spy Optic Beachwear Purchases on Pinduoduo