I keep a quilt journal that includes pricing, logs hours, who its for, when I started, when I was done, a place for fabric swatches, and then a place for a picture of the finished product. I know they sell them around, but I couldn't find what I wanted, so just made my own in Word. It's one of the first things my quilting "mentor" told me to do, and when she showed me hers, I was sold. Especially since I know I'll end up giving most of mine away.
Great suggestion, Jacquie!