I remember having the most lucid dreams. Especially if I were to stop smoking weed for over a day.
Saying to yourself "am i awake?" and checking your watch or looking at your hands a few times a day can make it so you get used to doing that, so when youre dreaming youll do it out of habit and usually become aware of being in a dream.

Being aware and having control of your dream can be very powerful.

Many people have thought of and solved complicated problems during lucid dreaming...

I wonder if we can share dreams like in Inception ;) now that's something i would want to try :)