DimScreen will dim your screen to a settable percentage of its original brightness.
It may be useful in dark environments without the need to fiddle with monitor controls all the time.
New in this version:
Timed dimming couldn't really be aborted by the user and always redimmed the screen. Now, once timed dimming is aborted it won't autodim the screen anymore until the time falls again in the set time period the next day. Thanks to Chris Delorme for the report.