Can: Alternative Alarm Clock Wakes You Up Via Alternative Methods

I think just about everybody hates the sound of alarm clocks. Say what you will about alarm clocks that let you choose from a variety of sounds, but being woken up suddenly at 7 in the morning to the sound of the rainforest or a normal alarm clock ring is still not very pleasant. What about instead of sound, you could instead choose to be woken up by a fan or the smell of coffee?