You don't need to anticipate how long those things will take, you bill after the fact. Yeah if you don't keep good records of your schedule and just try to gues

You don't need to anticipate how long those things will take, you bill after the fact. Yeah if you don't keep good records of your schedule and just try to guess what you were doing at 2:39 last tuesday it might be stressful, but that's a problem with the record keeping, not the billing.