I bring three wedges and a putter from my bag/cart for any shot around the green. You’re never 100% sure of what you have until you really see it up close. 90% of the time, I’m chipping or pitching with my 50° gap wedge though.
I've got a friend who doesn't know how to count very well when he's golfing. Golf for him is a day outdoors with his buddies, a few beers, and time off from chores and childcare, so I don't give him too much grief. But we do a counting lesson at the completion of each hole.