Expert Q&A: Mastering OOTDBuy Proxy Shopping for Stella McCartney Wallets Q: As an experienced buyer, what makes the OOTDBuy proxy shopping approach particularly effective for purchasing Stella McCartney wallets from Tmall? A: The OOTDBuy Spreadsheet… Professional Buyer’s Guide: Using OOTDBuy Spreadsheet for Stella McCartney Wallet Purchases on Tmall