Well i bought a new toy today to help me find the total square feet of property, I understand how to use this tool, and how to perform the math to come up with the square footage. now once i have the number of sq. feet how do most of you come up with a price to charge per sq foot? I have always used my best judgment on giving estimates, and it has not failed me yet. on mowing anyways!!! a few complete disasters on clean ups.