WD-40 is giving away 100 limited-edition tool belts. All you have to do is give up a trade secret. The company is looking for tips and trade secrets from construction industry professionals to help build the WD-40 JobSite, an online resource for home improvement and repair.

Submit your trade secret at www.wd40jobsite.com. Each of 100 winners gets a toolbelt and his photo displayed on the Web site next to his winning secret.