I love doing scrappies, too. My method, if you can call it one, is to put all scraps from a current project into a basket at the end of the cutting table as I am working on it. After the project is completed I go through the basket and cut everything into sizes and shapes I commonly use in scrappies, such as 2 1/2" squares, 2 1/2" strips, 1 1/2" strips, triangles, etc., depending on the size and shape of the scrap. I keep separate plastic tubs for each shape. This way prep is pretty much done already, and I can just pick and sort when ready to use them!