Few other things:
All doors - generally - open "out". As in, if you're leaving a building, the doors swing out.... you'll have to push. If you're entering, you'll have to pull.
There is a general lack 'roundabouts' - they are intersections instead.
This is my pet theory === you can tell if you're in a commercial/business district or residential simply by looking at the colour - oops, I meant 'color'

- of the lights. Yellow light/bulb light is usually residential/private. White/flouroscent light is usually business/public.
Driving rules in general are systematic and 'make sense'. They do need a little "getting used to". Speed is much, much faster. And you'll also note a somewhat general 'lack' of public transportation (unless you're in a real big city). You'll also find that having a car is nearly indispensible.
Oh and you folks from London (or Bombay

), forgot about your 'double-deckas'
EDIT : And if you're bringing electircal appliances with you, don't forget to bring converters.
First, the voltage here is 110v.
Second, the pins/sockets are different. The sockets are flat and the pins are flat too - none of that round stuff