“ Her sister must be the one where I shop. Never occurs to her to dig the checkbook out of her huge and cluttered purse until at least a minute after the final item has been rung up.” How.do you know what amount to write the check for until “the final item has been rung up “?
You don’t. You could, however, find the checkbook, write the date, payee name, and signature, to speed the process up, as a courtesy to those in line behind you. Thanks.