GREENIFY
LEss ram? HOp on Greenify in your android. No need of root. Works either way, rooted and non-rooted. It hibernates the apps you selected into hibernation, meaning less ram usage. A good way to let those heavy unused apps top sleep. You just have to click the app to wake it up from sleep. No error messages and no fuss. Although apps that need constant connection are preferred not to be hibernated. Check it out. Might even make your phone faster.
Here is the direct link from the developers website:
Greenify.apk