We get our hair cut by a friend who comes to our house every few weeks. The kids come into the kitchen one at a time, then when they're shorn they can go back to watching TV or whatever they were doing before. It beats trying to keep them under control at a hairdresser's shop.
We end up with a big pile of hair on the floor, and this is another bonus of having our hair cut at home. The cuttings go on the compost heap where they decompose just like all the other organic material we put there.
Human hair is said to deter pests such as rabbits, moles and deer - shy creatures who avoid the scent of humans. Put handfuls of hair in net bags and tie them to trees and fences around the garden. If you need more hair than you can personally provide, you may be able to scrounge some from your local barber shop. I can't vouch for this tip personally as I don't suffer from mammalian garden pests, and I doubt it works on sassy critters like mice who come right into human houses.