That's about right. And they usually wait until all the items have been scanned and bagged before they suddenly realize they are expected to pay for this and now they start fishing around in their purse for the checkbook. Then the coupons.
Despite our affluence, my wife is a coupon fanatic and she maintains a complicated filing system for them. But I just can't deal with them. When I do the shopping, she'll give me coupons for the things she has on the list but I just end up chucking them. To me, it feels too much like using food stamps.
if you factor in the time necessary for dealing with coupons it’s not worth the effort anyway.