I feel like I've sort of been "graduating" to Sex 2.0 lately. I know the basics, where things are, how to hold my orgasm, etc... Now, I'm figuring out some more advanced stuff.

One thing that interests me is what I call "Sexual mechanics" or "Sexual ergonomics," i.e, small tricks you can do to line up bodies for better intercourse. Two examples are putting a pillow under her hips and missionary, and I recently began bringing her to the edge of the bed so that I could stand for doggystyle (it lines my hips up better. When I'm kneeling, I'm a little too low, and it's mildly painful and more difficult to thrust).

So, what are your best tips along these lines?