I have seen so many tips on saving and sorting scraps that I thought I would show you how I do mine.
Top left, I have a strip left over so, lower left, I place it on top of the corespondent fabric and then, right picture I fold and store them together. If I only have a smidge left I store them by color in shoe box size containers. I slip marked index cards in the storage box with the color written on them so if I need to change it, I just change the card.
I have always been afraid to cut the fabric into sizes as I know if i cut one inch I will need it two inches!!
I have six more but these tend to be the ones I use the most.