Digital cameras make useful USB transfer devices. Put a 256 card in the camera and you can move as much data as most people actually have. I have a spare card for my camera that has most of my data backed up for portability and another for transferring photos.
When you plug in the camera it appears in My Computer as a removeable drive. I then just grab the My Documents folder and drop it on Removeable Drive to copy everything over, then do the opposite on the other computer.
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Through difficulties to the cinema