Keep your hard drive clean with Auto-Delete
This free Windows utility lets you automatically delete old files in a given folder. You can fine tune the settings to delete files that have been hanging out for a day, a year, or somewhere in between. Files can be moved to the recycle bin or permanently deleted. And you can choose whether to include subfolders or not.
It might be a good idea to set Auto Delete to monitor your web browser's default download directory. Odds are if you haven't moved a file out of that directory after a few weeks, you're not really going to use it and it's just taking up space on your hard drive.
[via Shell Extension City]