Oslo Airport is very nice to look at but impractical to use because it is built in one long straight line. Transfers from domestic to international flights all take place near one end. They can involve a very long walk and it is an irritation that the moving walkways from the transfer area go in one direction only - the wrong one. One trick if arriving domestically is to ignore the transfer signs. Instead go through the baggage claim area and out to the main arrivals area then upstairs; then go through security (which you would have to do in the transfer area anyway) and on to your international gate. You will probably have saved yourself 10 minutes and a long walk. Other irritants: the ladies' toilets are too small - getting a trolley into them is impossible and getting a wheeled carry-on bag in is difficult enough. There is a lift (elevator) in the transfer area but it is rarely available for use. And it's hard to find a drink of water anywhere.