Mike Hansell asked me to test a utility he is developing.
I don’t usually do this sort of thing, but I liked the concept of DJF (delete junk files).
It sounds like it does a similar job to something I’m currently using: emptemp2 (empty temp folders).
Here is a screenshot of DJF:
I ran it on an XP virtual machine I (rarely) use for testing potentially unstable software. Since I don’t use this PC much, I didn’t expect DJF to find much, but it managed to free up over 900Mb. On a high-usage PC, this could be even better (and you might get a performance boost as well, particularly if you do a defragment after running DJF).
Keep an eye out for DJF, as it will become available via computer-aid.com.au in the near future.