until a week ago I looked like the 'Zig Zag' guy because I mostly work at home and just couldn't find the time to do the haircut thing, but now I've got a nice buzz-cut and super-short beard to match.
Good for another year! (had to spend a day on site, too, and the hair in my eyes was bothering me, and I'd been saying "I need a haircut" for 2 months)
But yea if the job required it, I'd do "suit and tie" with bi-weekly buzz cut and clean-shaven face. You do what you have to. Sorta like when you're in the military.... (which I _was_ for 6 years - and prior to that, I had to wear a tie to work, being a store employee for a large drug store chain)