People are so surprised that I cut my own hair. I haven't paid to get my hair cut since I left FSU in 96. I've had a flat top comb and some Wahl clippers with adjustable taper for almost 12 years. I cut mine every week so at $10 cut+$3 tip/every week I've saved about, well, you do the math.
I'm not good at math, how much does it equal?