Since I’m in the high-risk group for being felled by the Covid-19 virus (male, over 60) I think I should be adult enough to take some precautions.
Here’s my kludge (or possibly kluge with varying pronunciaition): I carry one of the bandanas I’ve accumulated in my life and use it as hand protection for doorknobs, light switches, other public places I have to touch. Then I shove it in my back pocket (which makes me feel very farmer-ish).
I just have to remember not to use it to blow my nose.
And, after you use it to open one contaminated doorknob, your bandana now has Covid-19, just waiting to climb off the bandana onto your hand the next time you use it. Many of us have “philosophical” issues with single-use products, but attempting to live virus-free may require them.