Well we're glad you asked. Having labeled many a tool in the past (which sounds like a night of people watching at the local pub), we can attest to the fact that tape with sharpie just doesn't last and wussy labels from your home office label maker peel off.
These labels have a cool coating that allows them to hold up to the elements, makes them fade-resistant and water proof! Pretty much, they're meant to work as hard as your tools do and in the day and age where we're buying less tools and sharing more with neighbors (goooo community!), it's all the more important to make sure your items can easily be returned to you. Pick up a set of 70 labels for $19.95 over at Emily Press.
Image: Emily Press