We do the same with grocery bags and mail.

As for stores, i take two runner gloves but try to glove only the right hand and touch everything with that. Trick is to put your wallet in a left hand, one hand accessible place.

Works pretty well.

As for gas some of the buttons and sequences are not covid friendly. For instance Sams Club gas has the card and the payment ut you have to pick up nozzle then select grade Button which you then have to jam hard with nozzle tip. Ive already see one Grade button with tape holding it together
.