My local library book sale went card-only last year. They said handling cash for thousands of used books was a huge security risk and took too much volunteer time to count. It feels odd buying a 50 cent paperback with a card, like the fee must eat their profit.

Spot the same thing with fancy coffee gear. People buy pour-over sets with scales and timers, then realize they just want a hot drink without a whole routine. It's that gap between the ideal of a perfect result and the reality of a busy Tuesday night. Does your instant pot win because it cuts out the performance part of cooking?

Used to think a signed waiver was enough to cover it. Then a guy brought his own "all natural" oil blend for a massage, said it was fine. Broke out in hives on his back, and suddenly it was my fault for not stopping him. Now the policy is clear, no outside products at all, not even a hand cream. The talk happens before they even get in the chair.