Whether you have a pet or just find yourself in a dusty room, chances are a lint roller will come in handy at least once a day. If you wear dark colors and wool suits a lot, you'll definitely want to not only have one at home, but have a few travel-sized lint rollers on hand. These things will save your style on many occasions. You can also use them to clean out backpacks and messenger bags every once in a while. Just flip the bag inside out and go to work.