I have new understanding for those who have only one hand. Some things are especially difficult with only my left hand. (I’m right handed.)
Here are some of the efforts I’ve found most challenging:

zipping zippers and buttoning buttons on tight-fitting pants
tooth brushing
using scissors
putting on deodorant under left arm
cutting anything on my plate
hanging up a big neck top on a hanger
opening any bottles but especially those with child-proof caps
curling my hair with a curling iron
putting on eye make-up
using a pepper grinder
going down (or up stairs) with a right hand rail (especially since I’m shaky with poor balance due to no inner ear)
doing even a partial mani/pedi (toenails and/or fingernails)
sweeping with a broom
opening a yogurt container
getting the yogurt out of a 6 oz. container

Some things are getting easier in part because I’m cheating and using my right more than I should.

The only solution I’ve found is having a sweet, helpful husband. Thank you, John!!