Cheap usb micro drive. Got tempted while waiting for my click and collect nighthawk router. They've got about 19 on the shelf at Double Bay NSW. Not sure if store specific Mod: Appears to be Australia wide, stock levels vary.
Cheaper than the $8 listed previously..
Got the last 4 from Parkmore, keysy. I got one last week for 8 bucks and they work great seemed fast enough for me, just carrying around media stuff.