Re: Paper maps ...
I remember using an out of date road atlas (maybe 5 years old?) and planning a route based on the map showing a "proposed" road supposed to open a year after the date of the map. Got there and the new motorway extension still didn't exist! (M60 anyone? Years late and paper maps kept showing the proposed route with ever changing and optimistic opening dates on them for years, in particular the eastern part near Ashton.)