I can't use a razor on my face, so I use barber clippers to shave my jaws and I maintain a chin patch and moustache.
For my head, I use the Head Blade. It's awesome.
"Look son, there comes a time in every man's life when he has to make a decision. Do you want to be big, powerful, jacked, yoked-up, have women everywhere want you and men fear you . . . or do you want to do crossfit?"