Plastic laundry detergent bottle
Instead of throwing away a laundry detergent bottle when your wife empties it, especially the larger ones with the rubber plunger spout, fill it back up with water and throw it in the hunting rig. It makes a GREAT hand washing solution after cleaning wild game and fish and COMPLETELY removes the blood, oil, and smell from your hands. It can freeze, thaw, and refreeze in the bottle without going bad or busting the bottle. The soap residue left in the bottle is just the RIGHT amount. Chalk up one more for recycling.