Some people say yes, that your travel bag needs to do more than your at-home bag. When you travel, you might need a bag to carry a camera, water bottle, map or guidebook, and other accessories.  You might want a bag that has more pockets than normal to stay organized. I am not so sure. I like it when a bag can do double duty. It also means that when traveling I am more comfortable with the bag I have with me because I am used to carrying it.