In order to keep the tube from binding and pinching itself during installation, possibly resulting in yet another flat, talc is usually applied first so it can slide around easily inside the tire casing. "Dusting" the tube with talc can also make installing it easier to begin with.

Right, now how many of us carry a can of talc with us on a bike ride? Any one? No one? Well, you can have your tube powdered and ready to install any time with a little preparation.

First, get a small plastic bag, your tube, a heavy rubberband and some talc. Now, unroll the tube and lay it out flat so it's all exposed. Now dust the tube liberally with talc. Gently place the "top" half of the tube over the "bottom" and roll it up, trapping the talc between the rolls.

Once you have the tube rolled, snap a heavy rubber band around it so it'll stay rolled. Shake a littl talc into the plastic bag, drop in the tire and seal it up with a twist tie, or if it's a zipper bag zip it up.

Now put your pre-talced tube into your tool bag and it'll be powdered and ready to install when you need it!