That would be freaky...imagine driving on the right side all these years then changing to the left hand side.
www.wsj.com/articles/SB125086852452149513
The Swedes did the same thing about 40 years ago, but going from left to right.
I just found this page which covers the events quite well.
www.volvoclub.org.uk/history/driving_on_right.shtml
It would be wise to stay off the roads as much as possible over the next few weeks in Samoa.
Last night there was a story on TV about it. Bus drivers have to cut a door on the left side. Many bus drivers said it would be expensive and sometimes impossible to do so.
It won't really affect anyone....
...the sofa will still be in the same spot on the back of the ute :P