Here's what we do when grocery shopping.

[at140]

4. Funny you posted this becaue I was at grocery store this afternoon

I did not have a mask on, but did wipe the handle of shopping cart with germ killer spray.
After bringing groceries home, I prepared a solution with half teaspoon of dish washing fluid,
and same amount of Clorox in half a gallon of water. Then with a wash cloth dipped in that and squeezed out, cleaned the top of kitchen counter. Then cleaned outsides of all grocery item boxes and bags, then wiped dry with another wash cloth before placing on the counter.

Here is the thing, even if you touch spots in stores where others have touched, that is not really dangerous, but absolutely avoid touching your face until you had a chance to thoroughly wash hands with soap.