I think you just do what works for you, I did spend some time cutting up my scraps into sizes, I used some of them some of them just sit there in their shoe boxes, now I have just started mainly cutting things into strips with my go, or 2.5 inch squares if they are not big enough for strips. I can also cut down my strips into smaller pieces if I need to. Then I have just been sorting scraps out into color families like, reds, greens, blacks, greys, etc. I find this works good to rather than having all my scraps jumbled together in a big basket. I do like sorting scraps by color cuz then I can see what colors I have the most of and lately have been think about making two color scrappy quilts.