When you are finished your transaction at the supermarket, Target, the bank, wherever,
please collect your change and receipt,
MOVE AWAY FROM THE COUNTER, and
organize your wallet somewhere else so that the person behind you doesn't have to wait for you before conducting their own business.
I am perpetually befuddled by these people, mostly women, who remain at the counter to situate their purse or wallet. MOVE three feet and let the next person go. Your time is not more valuable than everybody else's.
Be considerate and move along quickly.