I am somewhat new to sewing but I've read the horror stories here about the overflowing scrap bins. (Well horror stories to some, other people love them!) I've tried hard to use my scraps. I make table runners a lot, just piecing bits of the same color theme. Recently I went through my 4 plastic shoe boxes of scraps and pulled out things that I simply did not like much. I gave them to another sewist. From now on, I'm only keeping the very best scraps. Everything else goes right into a bag to give to the other sewist. She tells me what she does not want she will pass on to a friend who teaches art to children. As long as they are out of my hair and not thrown out, I'm fine. I find that the scraps distract me from using my larger pieces.
Oh, I also try to use all the leftover quilt bits on the back so those scraps don't exist anymore, they are part of the quilt.