Reply to Macbook Pro (Cleanup / Memory)

Hi all,

I know someone mentioned it a few days ago. Been trying to find it but to no avail.

What should I be doing on my Macbook Pro to keep it running well?
I've had it now since June and have never run anything to keep it running on form.

What should I be doing to ensure it's running to the best of it's ability? Any programs? Any memory dumps etc?

Also, I'm on 4GB at the moment and got the memory here to upgrade to 8GB. Don't know why I haven't done it yet. Will it really make much of a difference. I'm not a noob when it comes to this stuff, nothing runs slow really, would it be better to wait til it did or just shut up and get it installed?

Thanks.