To accompany contracts also consider addendums.
Change of Work Order. Always, always get a signature." But my husband doesn't MAKE that decision". Don't ask...but it only happened ONCE to me.
I always used a DecorCard. A complete color selection card for each room, trim, windows, ceiling, etc. with the sheen description and ALWAYS a customer signature.
Even though the entire project was covered by a blanket contract, I detailed each room (phase 1, 2, 3, etc) and got the satisfaction form signed before I moved to the next area.
Job Phase Completion Certificate
Upon signing this certificate, you the customer and owner of premises, hereby agrees that all work as prescribed in the master contract (dining room) has been completed as described in the DecorCard details and that all work meets or exceeds the expected professional detail and finish. I, the owner, have personally inspected the work and approve of the agreed to price of $______________ for (dining room).
Nobody in business is your buddy. The sooner you learn that, the sooner your profits will be more secure.
Michael