alaskasunshine, not everyone has a husband with a table saw :) I'm cutting mine with a utility knife, and a couple of older rulers -- so no loss due to blade thickness. I just cut about 30 sheets (120 boards total) in an hour and a half, while watching some TV.
Not trying to say that people shouldn't use your service (and for those that want to avoid sitting here and cutting out boards, they definitely should consider using your service!!), but for those that want to do it themselves, and do it in an affordable fashion, I'm just sharing the information I have.