Originally designed as a Water Repellent for Nuclear ICBMs for the USA, this nifty little can of magic, technically called Water Displacement Formula 40 has found hundreds of applications in day to day life. So many that people have actually written books on how WD-40 can be used. Interesting story about the company, run by the same family that founded it. They never patented this chemical, so as to not disclose the formula and its secret. It's made in a lot of countries, however it's just bottled there. The chemical still comes from the parent company in US. Here are some of the uses that I have used it for - 1) Squeaky gates, doors, Cupboards 2) Drawers that don't slide out easy 3) Locks that tend to stick or get jammed, door and bike 4) Nuts that have rusted, and are hard to loosen. 5) Tools that are showing signs of rusting, for that matter, bike parts as well. 6) Removing chewing gum from shoe. Apparently it works on gum in your hair as well 7) Spray a little on a cloth and wipe your wiper blades with it, will keep em soft, and squeak free! Chain cleaning 9) Spray on areas where you don't want water to enter on motorcycle 10)It cleans and polishes brass, silver etc. Anyhow here's a PDF detailing some of the applications you can use it for. Its the duct tape of the Spray World. And now easily available in India. Make one a part of your home, you won't regret it! Best bit for me, I like the sweet smell it has!