Today I want to show you how to free up some space on your android device by clearing your device's cache. Cache, according to Wikipedia, "is a component that stores data so future requests for that data can be served faster; the data stored in a cache might be the results of an earlier computation, or the duplicates of data stored elsewhere". Instagram, for example, is an application that relies on cache to let you to look back on your timeline without having to pull down those images from the server. This also explains why you can still re-watch videos on Vine when you don't have a connection.
