I dream every night, without exception. The detail in the dreams range from vivid to just general ideas. I normally dwell over what happened in them while trying to get out of bed/taking my shower, but I always forget them after about an hour or so of being awake.
Occaisonally, I know I'm dreaming. I'm not lucid, though. The majority of the time this happens, I think I'm continuing a previous dream. I can't tell whether I really am, or if I just think I am.
I nearly always dream in very detailed environments, but people are more like ideas. I remember in one dream, I was in some kind of children's amusement place, like a Space Center. The floor was carpetted, purple, with green planets and stars. The walls were also purple and there were raised sections of the floors that acted like benches. I knew that there were a lot of people here... But when i woke up, I only remember seeing one person. Infact, I only see people I know in my dreams.
I once considered trying to become lucid, but after hearing horror stories of sleep paralyzes I changed my mind.