One way we have been saving money around here is by cutting my son's hair ourselves. My husband bought a clipper set from Amazon for about $20 and we haven't gone back to the barber since. Considering each haircut cost us $20 including the tip, I say we are coming out ahead.
Right now Frys has a Wahl 20 Piece Color Coded Clipper Set on sale for $14.99 with free shipping. Seems like a great price to me and it is something that will continue to save you money as long as you own it!