Yer i use Defraggler and CCleaner i also use Auslogics Bootspeed which did a naughty thing to get the full version but its great! Works well so amny features to! =]
you shouldn't sell your body you know
I used Defraggler up until a few days ago when I decided to go back to Diskeeper. Defraggler is a pretty good program. Piriform does make some good free software