I make a copy of the front page of the pattern that goes in with the fabric for the project. If I don't have all the supplies to finish the project, I make an extra copy of the front page of the pattern to take with me to get other supplies. Can't tell you how many times I have bought a small amount of fabric or notion or tool and can't remember which project it goes with. I found that if I put the pattern with the fabric then I couldn't remember which project it was with.
I too have several kits that are still untouched- AARGH!