Push down on the handle with my knees or elbows, open the door from the frame, edge or lip etc. Or hold a paper towel and do it with that [if there’s a nearby bin I spotted on the way in]. Sleeves if desperate, or wait for someone else to open the door on their way in!
It’s not really rocket science – have a look at the door handles and surrounding area next time you use a public loo, they’re usually revoltingly dirty – clearly not cleaned. Factor in the “wipe* and go” from other people and you really should be a bit revolted.
I’m not really concerned about much else, for example I spent a couple of hours laying paving slabs with a mate this morning and used my hands to spread the earth we’d loosened around, 5 minutes later I washed the mud off my hands with only water and then drank from the tap.
It’s pretty much just loos I get fussy about. Doors that open outwards and you can push open with your feet would be better, I wish they were standard 🙁
*I assume they wipe, I dread to think.