2 of MANY bins of scraps. I try to keep the printed papers and the solids seperate. I use my solids mainly to cut cricut embellishments and to matte pictures for layouts. My printed scraps are used on everything from layouts to mini albums, and even on tags!
Last year, I got really particular about the size of scrap that I keep. If it is less than 2 x 4, I throw it away. My stash has decreased drastically since I've done that! The other "scrap" I throw away is any piece that has been cut in to...for example, a punch or cut from the cricut machine. I cut the "cut into" part off and throw it away. Every scrap I have is smooth/complete with no parts missing. I hope that makes sense.