Thanks Chad,
For me I use an internet cleaner and erazer site. It gives you a menu with everything to be cleaned instead of hunting for it on your computer. Its especialy good for those who don,t know what to dump for fear of dumping the wrong thing.
I also use adaware pro.
Both these sites are not free, But not expensive either. Just one time payments.
I also use avg free. Great site. I just wish it did not have to update every day

Now I need protection for my children, That does not use as much space as NIS :-)