Don't toss those popped bicycle inner tubes when you have a flat tire! Patch 'em! A good patch becomes the strongest part of the tube. In fact, you can patch a tube many times and keep right on using it. Knowing how to patch comes in handy, too, when you're on a ride and discover that your spare tube has a hole in it (doh!).
You'll need a patch kit, pen, pump and, of course, your punctured tube!
Click the images below for large photos with full instructions!