So you’ve got the plane tickets, packed all the things that you need, but did you know that if you are going to another continent - or even just another country - you may need ac adapters to plug in any electrical items you may have packed. Without these foreign plug adapters your electrical appliances are only going to be as good as doorstops. In North America (and South America, Japan and some parts of the Caribbean) we use an ungrounded electrical plug that has two flat prongs (See Fig.1 .