Why does my Kyocera Zio run out of space so quick?

[shinehigh247]

Hey,
My mother has a [rooted] Kyocera Zio that she recently got through Cricket. We have a decent size SD card in the phone which we try to save the apps and downloads to, but the phone seems to run out of internal harddrive space very quickly. There's not a lot saved to the phone, yet I find myself getting into her phone once a week, and clearing app data for various apps that she has installed.

FaceBook is the main app where I tend to clear the app data from..it will build up 2-4mb per week (typically), but no other app really devours phone space. Is there anything that we can do to the phone to either (a) regain some space (b) deny the programs the possibility of taking up extra space, or (c) an app that we can get to help out with this issue.

any help would be greatly appreciated, as it's driving us crazy. Thanks!

[Angry Sailor 302]

The Zio is a limited phone, and rooting does not help either.