This homemade "Princess and the Pea" alarm clock is hooked up to a compressor that will literally toss you out of bed if you hit the snooze button. Not exactly subtle, but it sure is effective. [ProjectPage via Make]
You don't need the video, folks - just get married. Trust me - you smack the snooze on your partners head in the morning and she/he will knock you right out of bed. It hurts the first few times, but you get used to it. Just be careful of the defective models that knock you out of bed even if you don't hit the snooze.