I was experimenting with a new techniqe last night and found that this works quite well.

Step 1 - Relax and get into comfortable position i usually use the "gravity position". http://www.energybreath.com/Pages/brain2.html

Step 2 - Repeat the following: "I will be aware that i am dreaming upon entering a dream."

Step 3 - repeat that until you fall asleep. Works best if you have mastered dream recall first, if you are still learning that repeat this: "i will remember all my dreams and wakeup after each dream"

And once you fall asleep you should find yourself dreaming and for some random unknown reason you will already know you are dreaming!

Hope it works for you guys!