Arrowhead
Oldtimer
It's a hobby for me, but it's good to know that I'm doing it similar to the pros here. I keep a spread sheet to log labor and materials. I turn over all the receipts in a binder at the end. I bill weekly though and expect to be paid weekly, I don't want to be left hanging if something should happen where they can't pay. I send them an email every week with the running spreadsheet updated for that week. I also turn over their supplies at the end if they want them. Anything they don't want I roll over to the next guy so it kind of evens out in the long run. I take a lot of pictures too and post them in an online album so they can see what's going on and where their money is going. I have the luxury of only taking on one at a time though so I'm not sure how scale able this would be if I took on more - but I don't plan to so it works very well for me.