One of my quilting students is starting a new quilt using a lot of fabrics of the same colour family. When I asked her how she was going to remember which fabric is which she showed me these plastic zip bags with a pocket on the front. She has printed out all the colours and numbered them and has cut each one out and put in the pocket window. When she cuts each piece of fabric she is going to put it back in the correct bag.
I thought it was a brilliant way of keeping things organised. I suggested she stick a piece of masking tape to the end of each piece of fabric and number it as well, so that if things get mixed up she has the actual fabric labelled as well as the pocket. Of course she will have to be careful to cut the fabric from the other end to the label :-)