I have my own scrap therapy as I sew and fabric gets cut to a size I don't know what to do with it I place in a box next to the machine. Some scraps I will cut for strip quilts or cut the remander of fabric into square sizes I often use . This way I am no longer tossing the little bits or saving the for who knows what? You can make crumbel blocks wiith the real scrappy stuff. My friend decribed it to me as sewing all the pieces together no what color and then choising a block size you want and using you rotarty cutter and template ruler cut .
I find this way I always have something to work on and You really don't have to pay for scraps,swap and trade with others.
Have fun with it. I talked about this in the what are you recycline
christinaBennett