we get most of our groceries from a super walmart... the hamburger comes in a black tray that is about 10" x 12" x 4" deep.. we use those all the time for keeping different pcs in when cutting. we use the blue styrofoam ones mushrooms come in the same way..
i'm working on that omigosh quilt... i have a hamburger box full of white strips, one full of colored strips, (some only 2" long) and two with finished squares ..
inside the hamburger boxes are the smaller mushroom boxes with pcs that are already partially together... like a strip of 3 pcs for part of the double nine patch... i have been using that as leaders & enders for a while, so when i get a bunch, i can put them together...
i also take home from work the first sheet that comes off the printer... when you advance the paper, you always have 1 page wasted...
i also iron muslin onto freezer paper & run that thru my printer if i want a photo on something, ( or for the label) rather than purchase the paper backed fabric @ joannes.. that stuff was over $12 for 3 sheets...never buying that!!