First you need a good file/root explorer. Yes one that u can set the permission on and also a build.prop editor. Then goto the playstore and download box. This is a app that u can put on the phone and u can store things such as roms ,photos,music and more if u get box I think u still can get 50 GB of storage. Then u can get theme apps to make the ui theme or your esteem a new look.battery calibrater anreboot anycut wifixmanager YouTube hangout . but make sure u get the box app or dropbox. These apps u can use to hold other apps that u Dont want to use . and be sure to get TITANIUM BACKUP APK PAID OR THE FREE. this backup app will come handy trust me