How much do you save by cutting hair at home?

I needed a haircut.  I don't have much hair left, but a little growth on the top of my head can make me look really shabby.  A few years ago, we bought clippers and my wife started cutting it.  Because of the shape of my head, I have the cue ball look.  But, it looks much better.

Now where do we go for lunch with the money we saved by DIY.