The funniest thing happend to me a few weeks ago. I was standing in line at the permit office to pay for my permits. There was this guy standing be hind me humming a tune I heard at church. I turned around and started to talk to the guy about what he was humming. Well while I was standing there he said so your a plumber! I said yes I am, He said you the owner or ??? I told him I was a 1 man shop at the moment. He said you do commercial work?? I said Nope not a lick of it! He goes would you like to do a Dollar store. I said I would give it a shot! He took my # down called me a few times and we came to agreement of price. He's buying everything and giving me a labor to have dig my trenches for me. He's laying out the walls for the plumbing. All I have to do is run the pipe for him to where he tells me too. $6K is what I charged him. I know it's not much but it's just 2 bath deal and it's labor only! He showed me an invoice from his other plumber he only charge him $3700.00 for the same situation.