One of my British friends drove her car to continental Europe. She said it was an absolute nightmare and she's never ever doing it again.
Hey how do you guys feel when you drive in a country that drives on the 'wrong' side of the road with respect to your home country? I personally haven't had the opportunity, but when I get to California next week I probably might give driving my friend's car a try.
"TURN RIGHT KEEP RIGHT......TURN LEFT KEEP RIGHT"
Anyway there is always ONE perfect guideline to make sure you're driving at the 'correct' side of the road: For a dual carriageway, your steering wheel must always be at the centre of the road!