Speaking of sat-navs... As Mr Wafflycat's work involves many miles of driving and to many different locations, I got him a sat-nav (top of range one). It undoubtedly has its uses. It is of great use for the latter stages of a long journey when arriving at previously unvisited destination in strange place - it will get you door to door efficiently. What it does do, though, if you start depending on it as your main navigation aid, I have found, is that unless you are very careful, you start to rely on it rather than being utterly aware of the route and the road. When Mr WC had a leg in plaster (for over six months) & I was acting as business chauffeur, I was using the sat-nav on a daily basis and I really had to make a determined effort to not become overly reliant upon it. Driving without a sat-nav, you use maps/landmarks much more overtly, whereas once the sat-nav kicks in it's all too easy to start to subconciously ignore those & rely on the 'turn left' 'turn right' noises from the little screen on the top of the dashboard. It's great for long distance driving as you don't have to find places to stop to look at a map, but I can see how folk come to depend on it and then do stupid things as sat-navs are not infallible. On a bike, I am happiest with my OS maps in my map holder.