Wow this is a very interesting thread. I know I am getting in late on the conversation, however let me tell you how I handle this. I stick with the insane to keep them from getting insane. I charge a 10% late fee for any invoice that is unpaid for 30 days. My contract also includes a Bad Check Policy too. You only get to have two of those in any given year, and you are billed for whatever the current rate the banks charge for returned checks as well as an addition fee of 10% for the inconvenience.

I have to say, this has helped as always the checks are good. So far anyway. LOL