if you tend to travel a lot, or have to carry around your laptop for work on a daily basis, you might want to give The Assembly a look. They do super-cool, high-quality laptop sleeves that they've designed to maximise the convenience aspect of lugging your gadget friend around.
The bags are light, quite spacious (yet will keep your laptop in place), are padded, and even stand upright, so there's no tipping over—pretty handy, we say.
They've even got messenger bags and proper backpacks if you've got more than just the laptop to carry—all your wires and headphones need space, too, after all.