I write and play sports right-handed.
I eat with a fork and spoon... right-handed. However, I use a fork left-handed and cut with a knife right-handed... then eat left-handed.
When typing with one hand, I type left-handed.
I sign right-handed.
I drink with both hands depending on where my drink is. If the only place for my drink is on the right, then I have no problem drinking with my right hand. I usually drink left-handed when I'm at restaurants.
I shave right-handed.