So I have this Ash tree behind my house. It's a pretty mature tree, probably about 70 feet high. It is suffering from the Ash Borer and has not leafed for a couple of years, so I decided to take it down. I thought I had the fall line figured pretty good, and notched it and then proceeded to cut the back hinge. I should have realized I screwed it up when I was pretty far through on the hinge cut and the tree wasn't falling, but I missed that sign. Anyway the tree leaned the wrong way, and pinched my saw. I mean that tree leaned back and closed right up on my saw. I thought about asking my neighbor to lend me his saw, I thought about calling my woodcutting buddy and getting his ropes and pulley's over to haul the tree down... But in the end I got out a wedge and my sledgehammer. There was a tiny sliver of an opening on the backside of the tree that after several tries I was able to get the tip of the wedge in, and then I just wacked away, driving the wedge into the tree. To my amazement, the wedge tilted the tree enough to first, free the saw and then I kept hitting it in and it eventually caused the tree to fall exactly in the intended direction. I mean this tree must weigh several tons and one small wedge and a sledge hammer tipped it over. I've got to tell you, I am sold on the usefulness of wedges now. I'm picking up a couple of felling wedges before I take down another tree.