I often have the ability to control my dreams, but usually it's quite hard to stop yourself from waking up. I also sometimes dream that I wake up in bed, and it's really hard to tell the difference. For some odd reason, after reading this somewhere, I always look at my hand in a dream to check if I'm asleep or not. It's weird because in a dream my hand is always really, really strange looking, missing fingers and blurry.
What even more odd, and I don't understand this at all, the more out of my head I am when I go to sleep, the more vivid, clear, realistic and memorable my dreams are.
When I'm really drunk for example, my dreams are fantastic.
I'm quite fascinated by them to be honest. It's amazing how you can lucid dream and not know what is going to happen, your brain just sorta springs things on you, and I even have conversations with people who say interesting things I'd never have thought of myself!
Oh yeah, and I can sometimes read in a dream, but this is rare.