I believe I can leave my body while sleeping, but have no control over it. How do I get some control of where I go, and when?
I'm not sure there is a way to get complete control, the nature of OBEs is quite a random thing - at least for me it always has been. Well I say random, I think some part of you knows where it's going, a bit like with dreams I guess. You could try doing it while you are awake, there's a few books on the subject. I have a book here called Practical Time Travel that I've owned for years. My first experiments with OBEs were from the first chapter of that book, it actually kind of scared me at the time because I'd never heard of it before I bought that book and wasn't expecting to start floating above my body. Also it looks really funny when your friends read the title on your bookshelf.
I'm fairly certain there is a way to contol it. The CIA and the KGB have had in the past, and most likely still today, persons that that was their main purpose. To go "out of body" travel to enemy locations, retrieve information on documents, listen to phone calls, or people in a room talking strategy, etc..... If I figure it out I'll certainly let you know. Edgar Casey sure believed we all had the capability to do it. If you don't here from me for a long time, maybe I was kidnapped by either the CIA or whatever the current KGB is.