WD-40 is one of the most frequently encountered products in your pantry. Certainly, you are familiar with its functions: perfect as a clean-as-you-go solution, especially if you need to polish rusty metal surfaces and deal with many other annoyances that require lubrication. At the moment you see the familiar bright colours of this spray can, you will have a trustworthy solution against a lot of troublemaking chores. Here are the 5 proofs that WD-40 is an invaluable addition to your home and garden.