I was just reminded about the free app "Monolingual". It gets rid of foreign languages that get automatically installed on your Mac. I think I reclaimed around 10gbs of hard drive space yesterday after deleting everything except American and Spanish. Working today I swear my 4 year old beast is a little faster! As always, make sure you have a working clone just incase. Besides the obvious things like running onyx and tech tool pro, what other easy under the good things are people doing to improve performance?