Some day when I clean my garage I should end up with a box full of solder and flux for copper pipes and about three or four propane torches. Plumbing repairs don't occur frequently at my place but when they do I can never find my flux/solder/torch so I just go get new stuff. I make sure to put it where I'll remember for next time but next time rolls around and sure enough I can't find it again and have to buy more. Weed wacker line is the same way. I know I have three or four rolls of it somewhere but when I need it I can't find it so just go buy a new roll.