I live in a residential area (a suburb near Chicago) where there are a lot of driveways - I would like to establish a fair price for bidding this work (without resorting to "brain surgery"). I thought about a "minimum charge" based on a standard driveway of not more than 125 foot by 12 foot @ .30 foot or $37.50. Has anyone had experience in trying to do this? It seems that most of the posts refer to larger areas like parking lot etc. I think there may be a market for something like this in my area.