The file removal utility that can delete items ... later.
Native on Mac OS X.
Try now, buy later:

(v4.1, 1.4 MB, $12)
TrashLater
Shareware $12
Version 4.1
Build 277
7 October 2007
Language: English
Requires Mac OS X v10.3 or later.
Universal Binary (PPC and Intel)
2.2 MB HD space
Screenshots (120 KB)
TrashLater is native to Mac OS X (built with Cocoa).
A classic version of TrashLater also exists.
v4.1 (1.4 MB)
v4.0 (1.3 MB)
v3.5 (468 KB)
v3.4 (552 KB)
If your browser refuses to download .dmg files, use (something like) "right-click" save-linked-target-as.
Also available: versions for Mac OS 7-9.
TrashLater now supports Growl to send status messages (see screen shots).
Manage a download folder
It may be a good idea not to delete the .tar, .dmg and .sit files straight away - just in case you might need them again. But since you want to get rid of them eventually, why not leave them in your download folder and instruct TrashLater to trash these files a few days later?
Automatic trash collection
TrashLater can also remove items from the Trash itself. In this way, you would no longer have to empty it by hand. Better still, since TrashLater would only delete the older items you would always have access to the files that you put into the Trash more recently.
(Hint: Reload this page for more examples)
What is TrashLater?
It is a file removal utility that enforces a grace period before the move takes place. Items can be moved to other folders or to the Trash.
During its operation, TrashLater watches over selected folders, keeping track on their contents. Any unmodified file that resides in a folder for longer than the grace period is removed. Modified files are regarded as new files.
How do I use TrashLater?
You use the TrashLater application to specify which folders to watch and their grace period. Even the Trash itself can be watched. Note that you can use different grace periods for each of these folders.
Next, you select a time interval for the checking. That is all. Save your settings and quit the TrashLater application.
A client process will check whether any files were in these folders longer than requested. Any such "out-dated" file will be moved into the destination folder, for instance the Trash.
The client process will be launched through the Mac OS X built-in scheduling engine "cron". No application needs to be kept running in the background.
For more information, see the description alongside the Screenshots