Use of cache

Never be found of cleaning cache. We all will be cleaning cache in the hope that it could save the memory. Bit caches are really helpful. Those are the temporary data's. For eg: if you browse http://androidphones-zone.com
using the default browser, you can see the cache. These are caches of this blog. So these cache helps you to load the web page quickly the next time you open it. So this saves times and data. Same way each apps do this.