Unlike other forms of tape, duct tape can be torn into smaller strips that are quite even. So a 2-3' piece of duct tape, if torn properly could give you easily 10' or more.<br><br>Apollo 13 astronauts used it for repairs and the Apollo 17 astronauts used it to keep dust off the lunar rover’s fenders; it is now policy to have a roll on every space shuttle mission.<br><br><br><br>