Buzzfeed asked people if they wash their hands before, after, or neither for a bunch of different activities that deserve some amount of cleanliness... A lot of people do (thankfully).... Here are some of the highlights...
Cleaning the toilet... 96% after, 12% before, 3% neither.
Cooking... 93% before, 86% after, 3% neither. (Don't eat at THEIR houses.)
Taking out the trash... 78% after, 1% before, 22% neither.
Get the full results HERE