You said it, Tom...
Let me add that in my experience:
Poor people will have the money in their hand before they call you... (some do need a reasonable estimate in advance just to know how much they need to save up before they call you)
The wealthy tend to let the "office" handle their accounts payable, with expected enthusiasm and expediency... (read- very little)
Churches and city governments are notoriously slow to pay...
Music Festivals are
very slow to pay...
A good customer, when writing the check, says: "You sure that's enough?"
Honorable mention to those that offer to help carry your tools back to the truck after it's over...
![[Linked Image]](https://www.electrical-contractor.net/ubb/biggrin.gif)
Oh, and you may as well work for relatives for free just to avoid lots of hassle, and hope they give you a break every now and then...