Bubble bags pay for themselves after one time, last virtually forever if taken care of properly and are definitely my recommendation for the trim/leftovers. End results are the real deal and made with only water, ice and trim then sifted through the various sized bags to remove the debris and anything not trichomes. Then an easy pressing and you have yourself some grade A fine hashish! Once done you'll easily see why it advertises for $20/gram and more...and it's not all that time consuming. It takes about 3 hours (and that's with not working at it...stoners work when not necessary? hardly!) to process a pound of waste into an oz of fine hash, not counting the drying time. I bought the 5 gal, 7 bag system but the 5 bag is enough. Even the 3 bag system would do but there is one important bag (I feel anyway) missing from the 3 bag set.