Reno
The In Kraut
For a commute on public transport, I'd wear one pair for the journey. And as elbows said, you'd be far more conscious about touching your face and other things you may contaminate while wearing rubber gloves.You'd need a new pair after every doorknob, button press etc. Better to just wash your hands.
Just went to my supermarket for a bit of light panic buying (no toilet paper, but non-perishable food and cat food) and all the staff there wore rubber gloves, which I think is sensible.