It was the colors that threw me when I first arrived. In the good old US of A, the rule is "white to silver, black to gold".
Here, the brown is line, and the blue is neutral, and there is no color coding in the outlet or plug. You have to put on your reading glasses and look for little raised letters in the plastic saying "L" or "N".
Ground ("earth" if you're British) will be a familiar green or green/yellow in newer installations, but in older buildings, the ground can be white or grey, which is a potential pitfall in and of itself.
