I have a hard time parting with any of my scraps. I was just sorting through them this morning. I have a tub of fabric leftover from projects that I have made that could be used again (maybe 6" or so or bigger) Then I have a tub and a box that I keep pieces smaller than that. These I figure could be used for something sometime...like maryb119 said many times you just need a little something. someday I may get the courage to make a scrappy quilt (I am afraid of all of the different colors and how they will work together that is why I hesitate)
Once my pieces get to be less than 1" I do pitch them...I don't think I have the patience to make a crumb quilt. But frances yuhas has a point... maybe I can think about pet beds. I don't have a dog but cats need beds too