Last night I was playing Half-Life 2 for a few hours before I went to bed. Before I went to sleep I could see images of HL2 in my mind. When I was asleep I actually had a dream of actually being in HL2. I think I was Gordon Freeman, and I had to radio another Gordon Freeman - in the future.

I think this works better with fast-paced games, though, as I remember a few years ago I was playing a fast paced game (I think it may have been Sonic the Hedgehog, or something similar) and I had images of that game in my mind before I went to sleep. With games becoming more photo-realistic, it's a good idea to make RCs while playing games.