At least the Split Stick, a double-ended USB stick from Quirky, will keep your home and office files separate. Each end of this stick houses a retractable 4 GB USB drive. The Split Stick is made of rubber-coated anodized aluminum; available colors are black, pink, or orange. You can choose from a variety of etched designs to identify the data: look/lock, plus/minus, home/work, or others. The Split Stick is $24.99, directly from Quirky.