Just a quick update - this is going well. I like having the notice 20 minutes before, and it is definitely easier to stay up once you have actually gotten out of bed. It will probably be difficult to find very many innovative hiding places, but I'll do my best!
If I had the money, I would invest in this. It is an alarm clock that launches a small helicopter in your bedroom, and the alarm can only be turned off when the helicopter has been retrieved.