Any smart phone or tablet from today’s time will need maintenance. This maintenance requires multiple steps. First you must clear the cache. Next, you must clean your SD card removing thumbnails, etc. Lastly, clean history such as downloads, browser, and clipboard, Market, Gmail, etc. Doing all of this manually could be difficult hence we recommend an app called All-One-Toolbox available on the play store for free. This will do all of these easily and give you a bunch of other useful features.