A leaky faucet is a very common plumbing problem. I just earned a free dinner from a friend who wanted his leaky faucet fixed.
It took only a few minutes to replace the rubber seat and spring and fix the leak. The step by step guide to this Delta faucet repair can save you the trouble of bartering or even paying for the repair.
This particular project involves a Delta faucet but the same basic steps can be used for other faucets as well.