If you have a MAC this is good to know. Another pinner said, "I have not done this but just got my MAC back from the computer store because it was about to crash because of so many copies of the photos that I deleted. Did not know it was this simple.
Also great for kids of age to carry a house key - Bracelet key, no more putting keys in your pocket. Great for jogging and wearing pocketless pants. Dude I'm 14 and I still lose house keys I need this badly.