The Dualie is a portable hard drive and a docking station for your iPhone or iPod. It connects to your Mac via USB, enabling you to sync or otherwise manage either device while it’s in the dock. But it’s also powered via AC adapter, so you can recharge your phone or audio player even when your computer’s switched off.
Network-attached storage, or NAS, is one of the dullest—but most underrated—upgrades we can think of. If you’ve got a couple Macs on a network, a single drive can hold documents and stream media without having to leave one Mac on all the time.