What are some good Reality checks for lucid dreaming?

While you are awake, look at your hands every so often and think "Am I asleep or awake?" By doing this, you are sorting out reality from your dreams. In reality, everything will be clear and will make sense, your hands will look as they always do, etc. If you are asleep, something will be off. If you do this regularly, it will eventually become habit that crosses over into your dreams, thereby allowing you to be able to tell if you are asleep or awake. Lucid dreaming is just spitting distance away now!