Yeah, I found forfiles to be a rather usefull tool too.

I use it to do cleanup of logs and backups on my fileservers and Exchange.

Like for cleaning up backup RAR's on the NAS:

forfiles -p "E:\Backups\SQL" -s -m *.rar -d -60 -c "cmd /C del @FILE"

This cleans up all backup rars in E:\Backups\SQL older then 60 days.
You could offcource, instead of deleting the files move them to a long term storage NAS:
forfiles -p "E:\Backups\SQL" -s -m *.rar -d -60 -c "cmd /C xcopy @FILE \\NAS\Backups"

And again scrub them from there over after a longer period of time.

Or for a webserver you can use it to compress and cleanup log files:

forfiles -p "E:\WWWApps\Logs" -s -m *.log -d -60 -c "rar a -rr -rv -t -ag E:\WWWApps\Logs\ -m2 -mt4 @FILE"
forfiles -p "E:\WWWAps\Logs" -s -m *.rar -d -365 -c "cmd /C del @FILE"

in the -c part of forfiles you can execute just about everything you want, so you could start another script from there or even do a "net send" to the admins to tell them there are files older then x days in the folder.