Let's face it, how many old running shoes do you need to keep around to mow the lawn? Probably just one. Maybe two. So, what to do with all those running shoes that you have dutifully “retired” from running after 350-500 miles of running? If all else fails, you can probably donate them to your local United Way or Salvation Army. Or, ask at the specialty running store in your area. Some stores, and some running clubs, collect used shoes periodically and send them to charities overseas. The bottom line is: Don't run in old shoes because you think they will be wasted. You can find a way to give them new life without risking injury.