Another wake up trick is to puzzle yourself in the morning by putting alarm clock into a place
where it can’t be easily turned off. For example, bring a chair, put an alarm clock high on
the cabinet, then put your chair back into another room. You will have to
repeat this procedure in the morning to shut off alarm. Better yet, put it into a box that
can be locked with a key, and put key somewhere in another room. For example, in another
locked box... 
Kyle Pott who also shares his experience on early rising in the article Productivity
Boost: How to start your day at 5:00 AM at LifeHack.org has even more evil advice – he
suggests to put alarm clock into a combination-locked box and make yourself put in the
combination in order to turn off the alarm. I suggest you try it with changing your combination
code every day
. Also, you may need really loud alarm clock to make sure you hear it when
it’s in the box.

If you can’t come up with any puzzles yourself, the technology is here to help you.
Flying Alarm Clock
($24.79) will launch propeller up into the air so it flies around the
room. To turn off the alarm you'll have to get up, find it & return it to the base.
After you spend few minutes on your knees looking for the propeller, wake up is
guaranteed!
If finding propeller is easy for you, try to make it harder looking for 4 pieces instead
of one. Puzzle
Alarm Clock ($67.00) wakes you up by firing four puzzle pieces up in the air, and then
it is your task to get the pieces and put them back in the alarm clock - it won't turn off
until then.
Those devices will make a perfect gift for your sleeping buddies and family members. I’m sure
soon we will see alarm clocks sprinkling water or firing mini-missiles at you.