I have a low memory issue and want to see which apps are currently taking up how much space on the iPad (16gb). Not collectively, but individually. Have not added music, pix, videos for some time, so problem should only be from updates to apps, also info downloaded by readers like zinio, etc. I'd like to be able to selectively delete an app once I know how large it is in its current incarnation on the iPad. Likewise, is there a way to see how large the safari cache is before clearing it?