OS X does not have a Registry and you can easily delete the temporary files using Safari.
However, ONYX is a decent "tidier upper"
Note, if you leave your machine running, UNIX will run its CRON jobs to tidy things up for you, while you sleep
I have a P.C. that I use CCleaner on to delete unwanted temporary files and such. I also use it to clean up the Registry. I Just bought a MacBook Pro and I was wondering if there is any free software that can do the same for my Mac?