Personally, Reality Checks for me don't work. Why? well because every time you do an RC you really have to question reality. You can't just look at your watch and say half-assed "Am I dreaming" You must question reality and consider if what you are doing now is a dream, everything in life must be approached with the thought of "Could this be a dream?"
Also it has to be a sustained effort, RC's every 30 mins for a few weeks before it becomes a habit, and even then you can't be sure if you will do one in a dream... but if RC's work for you then you should continue, everyones got different methods.