When I had my own firm here I subbed a lot to the company I now work direct for, and even though I was self employed he'd regularly bung me a ton or 2 and there were plenty of crates of beer too, glad to say it's still happening! The only bonus I've had here from a customer was when I was asked to
tile a wetroom floor, bloke had screeded it himself and the fall was all wrong everywhere so I said I didn't want to price it cos it'd be a nightmare to build up the addy to get the fall right th the drain in the floor so either I'd do it on an hourly rate unless he wanted a price to re screed it then
tile, he went for the hourly rate. Told him the rate, all good, did the job and asked him for billing address, he said don't bother I'll pay cash now drop the V.A.T and stuff the taxman, so I said my black rate was cheaper than the white and he wouldn't have it and paid me the full white rate there and then cash in hand. Lovely jubly.