The computer mouse is not the first place you might look for exciting, innovative designs, but Microsoft's Arc Touch Bluetooth device is a big exception. It's been around for a little while now, but there still isn't a portable competitor that can match its elegance or convenience.
The Arc Touch runs on a single AAA battery, and lies flat in your bag. Ready to use it with your laptop or tablet? Press lightly in its middle and it pops into a sculpted bulge that'll fit easily in your hand, activating and connecting in the same motion. No more wasting batteries because you forget to flip a little switch.
$48