I got a couple here:
1) When fishing spinners, spoons or bait in heavy debri (grass, moss leaves etc) take one or two beads atleast BBB size and attach them via toothpick 2 feet above the lure. this keeps weeds from sliding down the line and fowling the lures motion. In extreme conditions several attached 6"-8" apart works well.
2) One effective way of unstagging a lure requires a banana sinker (3-6 oz.) and atleast 20 feet of heavy twine or decoy line. Slide one end of the line through the bead end of the sinker and attach a heavy snap or swivel to the line. When your lure snags put your fishing line between the decoy line and the weight and snap the swivel to the free end of the sinker. At this point you should have your line in the middle of what resembles a long bow. Reel your line tight and let the weight slide down while holding on to the lose end of the decoy line. When the weight stops jiggle it around a bit, in most cases this should free your hooks. if it remains snagged shake the weight until your hook gets tangled in the weight and swivel. then pull until the hook bends or the snag gives. This works well as it is much cheaper to replace a bent hook on a plug or spinner than to buy a whole new one.