I do a reality check every time a bright light shines in my eyes (because I'm working on FLILD - Flash Light) or just whenever something weird happens, especially on TV. TV and movies probably make it harder to lucid dream because people can make practically anything look possible in movies, so our minds accept it more. Like if I saw a movie and someone was flying around in the movie, I would just accept it, and if I saw someone fly around in my dream I would just think it was normal because I've seen it before.