oh, and also, I forgot that when I worked, I always handed them their change, because I didn't want them to think I was being impolite at work - I'd keep away from their skin, but I'd hand it to them. but yeah, since I give them the cash on the counter (unless the cashier's hand is already open and ready for it), then it's okay if the cashier puts it down on the counter too. but I know other people would have an issue with that - I'm just not fussy.