If your phone is getting slow, chances are that you are currently running low on free RAM. To free some RAM on the go, go to settings and then applications. From here go to currently running applications. Force stop the ones that you do not need to use but are running in the background. A good habit is to switch off your smartphone everyday. leave it that way for 30 seconds and restart. You would feel the difference yourself. These all tricks not only let you free up some used Mobile RAM but also conserves battery :-)