What notebook bag should I buy?

I've gone through a ton of laptop bags over the years. Tastes change all the time. Right now I'm sporting an InCase bag that's mostly a sleeve with a shoulder strap and a couple of pockets on the front. It's light-weight and stylish, but I'm always finding that I need extra room for cables, gadgets, phones, and other junk you usually accumulate on the go. I know they're trendy and kind of goofy looking, but there is a reason those messenger bags are popular. They've got plenty of room for all your stuff. If I were shopping for a bag, I'd pick one up. Timbuk2 offers custom color combinations, but I'd suggest sticking with black.

There are plenty of options out there for sure. My wife loves ACME Made bags for her laptops. If you're also into photography, LowePro has a pretty decent selection of bags that fit camera equipment along with your laptop.

I absolutely love the Laptrap. It's got a freakishy clever design that lets you open it up into a mini lap desk: