I keep getting a notice to update my ipad 3. But it tells me the update cannot be installed because I don't have enough storage. So! I deleted all of my photos - 1400 of them, thinking I could update then. Nope. Same message. Thinking this was critical because of a trip we're taking, getting the message that I could delete some usage settings, I checked THAT out. Turns out I can buy more storage. Key word. Buy. I don't get it. I rarely use this ipad. Guess I need to study exactly what it can do, and ignore the update popup. I like it, but would like to hear from long-time users of this device. How do I find out how much storage I have, and how much more I can put on my ipad. Thanks in advance.