Cleaning up temp files in Mac OS Xp

Not sure if this helps but i would try Onyx and Appdelete to get rid of applications, seems to do a decent job of getting rid of extra system files, etc.

"When a backup volume is not mounted, Time Machine has saved hourly snapshots to /Volumes/MobileBackups/ on laptops since 10.7. They are deleted automatically when you start running out of disk space though.

/private/var/folders/ can contain partially downloaded files or files for applications that have been removed. du -sm /private/var/folders/*/*/*/*/ | sort -rn sorts the folders by size.

~/Library/Autosave Information/ can contain old unsaved documents.

~/Library/Caches/com.apple.Safari/Webpage Previews/ was about 700 GB on my installation of 10.7. defaults write com.apple.Safari DebugSnapshotsUpdatePolicy -int 2 disables saving the thumbnails.

Safari saves the contents of websites and plain text files to ~/Library/Caches/Metadata/Safari/History/.

If hibernatemode is 3, /var/vm/sleepimage takes up the same amount of disk space as the amount of RAM you have.

/Library/Developer/ wasn't removed when I installed Xcode 4.3. It contained about 2GB of old docset files.

A good way to find large files is to sort files by size in list view after checking calculate all sizes in the view options. You can show hidden files with defaults write com.apple.finder AppleShowAllFiles -bool true; killall Finder."

"I got a bundled copy of AppZapper with a MacHeist - recommended.

JDiskreport - Free Java Utility will show you where all your space has gone - also recommended"

"Most of what I could say is covered above, with a couple exceptions that may or may not apply to your specific case:

If you use Adobe Bridge, the cache folder can get quite amazingly big. I cleaned mine out the other day and ended up removing 8gb of extra space. Also I'm using CS4, and I noticed that my CS3 cache folder was still around even though I got rid of CS3 a while ago. Another 2+ gigs there.

I also use Parallels 4 and it has a nasty tendency to use up all of the free space given enough time, but a computer reboot handles that. This could be just me though. If you do have Parallels or Fusion and have regular snapshots made, that could also be a factor.

I use Whatsize to check what's taking up space, but I got my copy before they started charging. I like it better than the other ones I've seen."

"Reboot your computer. If it suddenly has lots more free space, this is due to the ever-expanding swap files. They are reclaimed (deleted) upon reboot and will eventually get re-created as you use your Mac. This is completely normal.

There's no need for their existence to turn you into a reboot-obsessed user, however. It's a good thing when your Mac swaps unused memory out to disk."