[header] How to rejuvenate your smartphone [title] Back it up. [step] Want to add more apps and games into your phone but don't have enough dollars to get an sd card? All you have to do is back up all the data in your phone to an external device or the cloud so that you can enjoy the smartphone experience like it's new. [title] Clear the cache. 
[step] Many of the websites and apps create cache files in your phone so they can access it faster next time you open them up. But doing this will only take memory from your device.