Stripped Screw in Wood Repair
I've had good luck fixing stripped wood screws by taking a drywall knife and peeling off a sliver of pine (from a 2X4 or whatever) the size of the hole or a little larger. I coat the sliver of wood with Liquid Nails construction adhesive and press it into the stripped hole, trimming any excess flush with the surface that you're repairing. I usually install the screw while the adhesive is still wet and am careful not to re-strip the hole. As the screw goes in, it spreads the "plug" even wider and tighter in the hole and the adhesive, once dry, bonds to both the wood and screw. A pilot hole may have to be drilled first, depending on the size of the screw. I would guess the repair to be stronger than the undamaged surrounding wood.