I tried the coffee filter hash trick a while back with the garbage leaves. The first attempt I saw some greenish/brownish yuck at the bottom and thought: "You can't smoke that crap" and threw it away. A couple of weeks later when I was dry, I took the remaining garbage trim and had another go. Same result at the end, and I thought: "This will never work, but what the hell, I'll try anyway", so I rolled it up, and BANG! It was tastier and stronger than the actual buds. I'm looking forward even more to the next hash round than the actual buds now...