Been thinking about this, and I am coming to the conclusion that the difficulties of one time pads are bloody well overstated.

Who here has a USBdongle from their bank? A code card? Some physical item supposed to help with the security of your ebanking needs? That item might as well be a read-once memory stick. Heck, if I am reading traffic use right, you could encode your world of warcraft account in this way with approximately the same amount of hassle as is currently expended protecting those accounts. Except this would be guaranteed to actually work against all hacking strategies short of "Break into your place, steal your hardware".