Well I had planned on going to a billing system this year, but am now rethinking it. Before I had always been paid as services were rendered, and had to keep track of who owed what if they were not home, etc. It became quite the nightmare last year and I am now looking for a simpler way. The original plan was to bill by mail at the first of the month for all the mowings in that month and expect payment by the end of the month. However, seeing as I only mow about 60 lawns a week and I and a helper are always there, I think maybe just handing out monthly bills by hand at the first of the month might be less of a headache. I could just use my invoice sheets I used from last year and write them by hand on the fly if needed (or write them up the night before). What do you guys think? Worth it to mail? If so, why?