I use soap in public and in my dorm, but I usually wash without soap when I'm at home. Unless I'm cooking. Then I wash with soap every time I sneeze, blow my nose, touch my face, eat off my fingers, crack an egg, etc. I can be obsessive about it when I cook.
Few things disgust me as much as guys who don't wash their hands after using the bathroom. My suitemates don't seem to. I don't think my father does at home. It's revolting.
