My OBE Technique

First, the physical position. I use what's called the "dead man's pose" in yoga, laying flat on my back, with my arms relaxed at my sides and palms up. Sometimes I have something supporting my neck. I massage my face with my fingers to clear any stray wisps of hair and relax my forehead (I have a bad habit of frowning) and jaw. Then I sort of shimmy my shoulders against the surface I'm lying on to make sure the muscles are relaxed, becoming aware of the relaxing muscles in the arms, hips, legs, ankles and toes... basically moving the wave of deliberate relaxation slowly down, until I am completely relaxed and just letting the surface I'm lying on support me.
Then I wait, until thoughts like "What will I have for dinner? What will I wear tomorrow? Did I really understand my work or should I check with someone? I remember a song... can't stop singing it in my mind... that's annoying. And these images, are they memories or imagination or what?" -- just wait, until they quiet, and stop. Until they trickle off into the dark behind my eyelids, and inner silence, a deep and total blank-slate silence. Any sound I hear from outside is just released in the meaninglessness of being in the moment.
Some online OBE techniques recommend to use this sound, to simply listen out, with a blank mind. This did not work for me, and neither did any visualizations. Personally, I found two things key in this blanked-mind state:

#1.

Sense of location. With my mind silenced and dark, I just think of the concept or feel of "the air/space in front of my face". I don't imagine it moving, don't visualize anything, just become aware of that space. Then, I think "the air/space in front of the air/space that is in front my face" and just slowly ease that idea forward until I'm meditating on some vague location beyond my body... about a foot and a half beyond.

#2.

Holding the above thought, that sense of location-- and this is the hard part-- with absolutely no effort. It's after I'm out that I get to celebrate, or recall what I'm supposed to do, but during the meditation, I need to cultivate a deep feeling of... well, the best word I can think of is "defeat."
I have to sort of trick myself into replicating the feeling of giving up on the OBE every time I want to AP, because that state of being relaxes me far deeper than deliberate relaxation does. It quiets the thrum of excitement, or irritation, even boredom. It's really just utter defeat, letting whatever will happen, happen. (While maintaining that spatial sense of "beyond" as described in key #1.)

With correct balance, so to speak, I should make it through the disruptive transition to gain the experience of "floating up and away from body" between 20 minutes and 2 hours from starting.

Recommended Links
Pigasus' Technique - Much less occult jargon than E. Norton’s OBE guide, which is a good thing. While my OBE's are initiated with far more difficultly than Pigasus describes, and I don’t use strong emotions, it was this method that gave me the first "key" as mentioned above.
Robert Monroe's account - He talked like a wise old grandfather, which I find comforting and amusing: "And in 1956, we had a choice, between radio and radio with pictures. That was Television then, just radio with pictures... in 1958, then, I had this great, frightening, terrifying change take place in my life... I had this experience of moving out of my body, that was the final thing of something that had begun a year at least or more before that time..." Has hints of the second "key" I mentioned.
Everything You Read About OBE's In Books Is Wrong - My experience of sleep paralysis in relation to AP's and LD's is unlike anything he says about their relation, but the rest was pretty in-agreement with most else about OBE's I'd figured out. Like, staying defeatedly calm/relaxed through the vibrations, not until. Again, my key #2.
Robert Peterson's OBE’s - Kind of crudely designed site, but worth a read-through.