If you do not want to run out of space on your iPad then you have two options: buy always higher capacity devices (64GB) or care that is not filled with useless junk that just takes up space. The first option is expensive but the second on the other hand is free. In Cydia there are applications that can perform the second task, as iCleaner . But if you have no Jailbreak done, do not worry, because PhoneClean just as well .
Read moreFree Space on your iPad without Jailbreak, Thanks to PhoneClean