20M licensed drivers may lack basic safety knowledge... well, no shit. Driving on the roads can make me crazy at times. One of my biggest driving pet peeves is the lack of knowledge about turning. It sounds simple, and is if you pay attention. The reason you can make a right turn on red is that you are turning into a close lane. Doesn't matter if it's a one way or not. Well, same works with a left turn from a one-way onto a one-way. If you are in your left lane on a one-way road and you'd like to turn onto a one-way by making a left (oh, and you're at a red light) you can. It's legal. In fact, check out page 36 of the Oregon Driver's Manual (PDF).
Also, page 73 has an important, often overlooked rule: you must stop for a pedestrian in a crosswalk. Not only is it polite, but it's the friggin' law. I've seen Portland Police smal on the brakes to stop half way through the crosswalk while there are people in it. Pay attention and driving will be safer and easier.