I plug the cable that came with my usb drive in the back of the keyboard to eliminate the wear and tear caused by switching between the drive and the computer. It's cheaper to replace the cable than repair the socket in the back of the keyboard. Also it does not stick out as far and allows me to do all the swapping in front of the keyboard. I also use the smartmedia card as a backup. Few people seem to realize that flashdisk "wear" each time it is read/written to.
They only guarantee 10 000 read/writes on the cheaper ones.
Jerry