Do you have hundreds of old, scruffy and perhaps even dirty tennis balls lying around your house? While it's easy enough to toss them, it's great to find new uses for them and as you'll soon learn, there are plenty of possibilities. This article suggests a number of ways to reuse old tennis balls but these suggestions are just the beginning – it's likely that once you start seeing old tennis balls as a valuable item in your life, you'll find plenty more ways to put them to a new use!