The way I solved this issue is having some pay on the 15th and some pay on the 30th. I bill the same month of work. For the first group I send the bills out on the 1st and due back on the 15th. This group mostly consist of new accounts and accounts that have trouble paying on time. That way they only got 2 mows if they are no pays. The second group is long time customers and commercials. Sent out the 15th due the 30th.
2008 Ford F-250
7*12 Single axle trailer
Toro Grandstand 60"
(2) Husky Backpack Blower BT150
and American Muscle