Portable storage has become so popular that many companies are making flash drives that are so small you can always carry them with ease. There are some as small as a credit card. They have made them more user friendly when it comes to the designs by making them look like cartoon characters and built to look like a Swiss army knife for example, with working knife and scissors included.
  
Here is a bit of information about the pros and cons to help you decide

Pros:

• No scratches or dust like you can get on discs
• USB support means you can use it almost anywhere
• The smallest can store dozens of discs worth of information
• More tolerable of abuse but can still be damaged

Cons:

• Can only be reused a limited number of times
• Writing becomes slower as it is used over and over
• Does not include write protect

Even with the cons of Flash drives they are relatively cheap so even if you get 25 uses (but you should get thousands) you have gotten your moneys worth out of it.