Untangle Fishing Lines
If you have a tangled fishing line that you want to loosen, spray it with some WD-40. You can also use the spray to extend the life of curled – but not too old – fishing lines. Take out the first 10 to 20 feet of line and spray it with WD-40 the night before a trip.
Coat Truck Bed
Before installing the liner in a truck bed, make sure to spray it with WD-40. This will make it much easier to remove the liner. Once you want to remove it, it will slide out with no problem.