Costco, for whatever reason, seems to eschew tech. They have a clunky app that (checks notes) shows your membership card like its 1997. No wifi in the stores. Web site that's not much more recent than the phone app. Competitor? Has wifi in the stores, I can scan things as I put them in my cart, pay and walk out the door. Word of advice for Costco? There's frugal, and there's cheap. Really, stupidly cheap.