Mac: F.lux, the app that adjusts your computer's colour temperature depending on the time of day, has added a new option to change those colours based on your schedule instead of the sunrise.
The new option is incredibly helpful. Instead of only matching up to the sunrise and sunset each day, you can now make f.lux alter the temperature based on when you get up in the morning and then when you go to bed. You can also set it up to so you sleep in on the weekends. This update is a beta only available for the OS X version.