In reply to Robert Durran:
> I think the only possible justifiable use of Sat-nav is once within a conurbation,but even then I would, on principle, rather get a bit lost.
I use mine every working day, the main part of my job involves traveling all round the county to different sites for a utility company.
My sauna had a database of about 4000 different sites on it and I visit about 400 of them.
Some are easy to find but others are not and often are tucked away down farm tracks and the like, they are also not sign posted.
N the days before sat navs I had a box of AtoZ maps plus os maps and had to make lots of phone calls to different people for some local knowledge.
These days I just input the name and 99% of the time it takes me to the gate, the 1% can be interesting but a bit of common sense tells me that it may be wrong when it's trying to direct me in to a lake or river and that I might have to get the map box out of the back.
Quite often these days though I will just open Google maps, the sites can be seen on the photo map and you can normally see the access road/track too.