In 1953 WD-40 - which literally stands for Water Displacement 40th Attempt - was designed for metal lubrication and to prevent corrosion. Fifty eight years later it has become a regular household item, and is nearly as common as duct tape. Fortunately, WD-40 has many other household uses, and we've found a few that might come in handy. Just remember to keep it away from open flames and use in a well ventilated area. (Photo courtesy of FHKE/Creative Commons Flickr)
