You often head it said "You only need two things in life: Duct Tape and WD-40. If it moves and shouldn't, use Duct Tape, if it doesn't move and should, use WD-40." WD-40 was originally developed for use on space ships, it may have taken 40 tries but the final tried and trusted formula was used on the Atlas Missile. in 1953. Nowadays almost every garage, shed and toolbox carries at least one version of the infamous WD-40.
