Android is supposed to manage itself I've heard but you could get a task manager. I've been trying not to use memory manager all day, as I've been told not to but applications I haven't used in over 5 hours are still open lol. I'm at 42M of memory
I've had some severe lag sometimes when using the browser, especially after using the Stop function when loading a page. After clearing the cache and turning the phone off, then on, the lag goes away.
