I have been giving customers a 10% discount if they prepay the mowing season. I base thier price off of how many cuts they needed the previous season. I have NOT based it off a 30 week mowing season because most of my customers do not water during drought time and alot of them dont fertilize. I mow most of my customers 18-25 times per season. Is 10% too much of a discount? Does anyone else give this discount? Thanks alot.