So you have to lug around a laptop, mobile phone, MP3 player, and extra hard drive on top of all those hardcover books, eh? Until schools go paperless, you have no choice. This semester, pack your gear the smart way. Find backpacks with extra padding, special compartments for your personal gadgets, as well as a line-out for your headphones. Wired students should look for backpacks that are lightweight, inexpensive, and practical. Be kind to your back, and choose one with wheels so you can alternate when you're tired. Also, remember to measure the length, width, and height of your laptop so you know it'll fit.