#6 - There are a million uses for Duct Tape (luggage repair, makeshift lint roller, etc). So why not bring some along while traveling? Since a roll of duct tape is large and heavy, try this instead: wrap a couple feet around a pencil or marker. Then, undo exactly as you would if it were still on the roll. It just might save your trip, or, prevent another trip... as in a trip to Walmart.