I have a gallon jug of 99% Isopropyl by my workbench...........
I keep hospital grade spray disinfectant in a 2oz spray bottle it’s aluminum quat based safe for skin contact. Things like bar tops get sprayed as does the hands before entry into the vehicle or home, and you use the liquid on your hands to sterilize the outside of the spray bottle before it goes into the pocket. You contaminated it by touching with your hands in the first place. Also you don’t reach into the pocket you push it up out from the outside. So the interior of the pocket is always clean.
We used to do drills in our full bubble suits with the SCBAs and all. White suits, blue dyed corn syrup with a UV invisible dye also added that was spray coated to the whole outside of it.
The task was pass/fail you had to get into the clean room airlock tent, decontaminate your suit and get out of it without a single pin head sized dot of blue and then the black lights came on in the dark tent. It takes much practice and systematic efforts to pass such a drill.
Yeah this was an alphabet group doing this drill.