5. Two Timer
As an editor at a digital magazine, I'm constantly schlepping my laptop to and from the office. So I've recently made the decision that it's time for me to bite the bullet and buy a backpack. Enter this ingenious, dual-personality version by Nell & Mary. Why do I love it? Because when you don't want to wear it over both shoulders, handy top straps make it possible to carry the bag as a tote. Voilà, backpack in disguise!