I've just started keeping a dream journal. I'm sort of surprised...I've been able to write down 3 or more dreams a night.

I've been reading about using clocks/watches to help you realize you're dreaming. In my last dream I looked at a clock and saw one time then looked at a digital clock that said it was an hour earlier, and another clock said a completely different time. In the dream I just though two of the clocks were just set to the wrong time. How do you realize it's a dream?

Also, some times right before I fall to sleep when I'm sort of semiconscious I'll get a very strong feeling that I'm falling and I sort of jerk and wake up. Does this happen to anyone?