Over the past couple of weeks I've been having more and more LDs however I can only recall one time I did a RC (the one where you block your nose and see if you can breath), most of the time once I think of the word 'dream' I instantly know I'm dreaming, no need to do a RC because I just know. So how many people here need to do RCs to know and how many don't? Does this come with experience or does it vary from person to person?