General :: Script For Removing Files Depending On Age?

I want to develop a bash or Perl script that will evaluate files in the local directory and delete every file that is older than a specified time period, such as three months.I write documents and save the latest modifications by putting the current date in the filename, so I can easily see which versions are the newest. I would like to clean up my directory every once in a while, though, by eliminating the copies that are more than a few months old.