i have a couple customers that love to play games with the payments. they never send them by the due date, they are always 10-15 days late, but they backdate the check to one day before the due date, like maybe i won't notice. i consider this an insult to my intelligence. would u nail on a late fee every single month, cancel them, what would you do? and one in particular, he doesn't send it until he gets a phonecall, "hello, mr. smith, this is your lawn service, AGAIN, reminding you that you are late, AGAIN! what seems to be the problem, THIS TIME?" then he will call back, "o, i forgot, i'll send it right now.'" and he does send it. there is nothing that pizzes me off more than late payers. how do you handle things like this? they are otherwise great customers, with no complaints, and they pay a premium price for our services, not to mention, they are all "grouped".