Over time technology is evolving and causing things to be smaller and more fun. But no one ever thought presents would be as small as a USB, a useful gift for anyone. Starting from college students to working people, there are a whole different set of unique USBs. Although all of them do the same job, their novelty is in there shape, size and color. USB are really cheap and everybody likes to receive things which come in handy, not thrown in the garbage or taking up space on a shelf. So the USB are the perfect example of a useful gadget.