I have several potential commercial customers that have said if I could provide an all in one rate for Landscape Maintenance, Fertilizing and spraying, Parking Lot Sweeping and Maintenance of the Irrigation system they would be interested in changing to me from their current providers! This stems partly from the fact that their is only one guy in town who sweeps lots and he is unreliable only shows up when he is not out of it or when he is sober ! I think you get the picture! I have been doing some research on vacuum sweepers and the cost of these machines. I have questions regarding pricing for sweeping lots ! How much $ for this and how often is this done ? Is there a formula for doing this ? There must be something or some way to figure this out ! Please help me !