The thing is....if you have the forsight to carry a GPS, then why not have it switched on. Fine if you want to dead reackon your way around the land (or as Enerst K Gann said after using radio navigation: "we had to revert back to this old outdated dead reckoning" and this was possibly in the 40's
)....If you don't want to use it then either turn it away from you, don't look at it or leave it at home.........
A spare battery is no good for your torch if it is in you bag in the boot, or as I found out, there is no point leaving your approach plates in the bag in the luggage compartment just because the weather is *forecast* to be VFR....
