This is a quick Instructable to show you a better way to save open caulking. Typically tubes of caulking dry out after a few weeks if not stored properly. The old way was to plug the end of the nozzle with a nail and it works for a few days but if the caulking is stored any amount of time the nozzle will dry out and the tube of caulking basically is useless. I have used this technique on both acrylic and silicone caulking and works for both.

Step 1: Materials and Process

You will need:

Rubber band
Piece of plastic

Process:

Wrap the end of the nozzle with the piece of plastic, leaving some room at the very end.
Wrap the rubber band around the plastic around the nozzle.
Squeeze some caulking into the void that was created when wrapping the plastic over the nozzle.
Store the tube somewhere cool.

Video:

Check out a video of the steps: