Task Killer
Is your device running a bit slower than it used to? Maybe its time to clear up some RAM using Task Killer!

Task Killer is a free advanced task killing app that can boost your device's available RAM by shutting down old applications that you are no longer using. Ending these background tasks can save battery life and improve device performance. Results may vary based on device, so give it a try (it's free) and see if it works for you!