In a way I'm fortunate, since my facial hair doesn't grow very fast - I usually just take the guard off of a beard trimmer and go over my face with that. As >>6 said, it isn't perfect, but it's quick and painless. I use a Mach 3 Turbo as well, which works pretty good as long as the blade is fresh.
Anyone use those crazy 'vibrating' razors they sell now? Any good?