Thanks, all! I haven't followed the links in the post to the further remarks about boundaries, and one podcaster alone is one opinion, but I found the short piece instructive.

Patty, I've tried the coin thing in self-checkout, if I remember to take them with me, and so far I think Kroger down here is the only one that most often has a kind of bowl where you can most easily drop in coins. I don't shop there often, but I occasionally go in to look for the otherwise expensive cuts of beef in the last-chance bin (as a friend who used to be a butcher pointed out, it is just a bit more aged.) A couple of rolls of coins in the pocketbook make it a lot heavier in a hurry! (Does anyone else remember the old Cary Grant movie where he plays a tough guy courting a society woman? At one point a man has been threatening her - Cary takes him aside, and offscreen we hear a thud and see a bunch of nickels bounce down the stairs, from the roll he keeps in his pocket like an impromptu brass knuckles.)

Dorothy, there you are up front and center in those wedding photos! Looking good!