I learned the hard way that you have to charge a flat minimum for jobs under one hour, and a reasonable hourly rate after that. Keeping in mind how many dump trips you have to make and how far the trip will be. What cracks me up is that people expect the price to be the same year after year. Nature is variable, trees grow weirdly, and winds blow 17 different directions. Some years have storms, some have hurricanes, and all that crap lands on their lawns. You never know whats inside those piles till you start to suck em up. Seller beware!!!
Thank God we live in a country where people pay good money to have their leaves picked up.