Being someone who drives around a fair bit for work, I have a SatNav (a Garmin Nüvi 1300, if you must know) and I use it a fair amount. Now, I'm not one of those idiots who would blindly follow a SatNav wherever it told them to go - even if that were off a cliff, or from Solihull to Barnsley via Ashgabat - without ever exercising any common sense, but I do find it very useful to use the SatNav when I'm doing a lot of travelling.
However, something I often find irksome is the strange kind of SatNav snobbery which some people exhibit. I'm sure we've all experienced this, at some point... Someone gives you the address of their house, school, workshop or tinned soup processing plant, and then adds: "oh, you'll have to use a road map to get directions, SatNavs can't find our address."
I don't know why this irritates me quite so much, but it always does. It's like they're trying to say: "we're too special for that; our address is so exclusive, your plebeian SatNav won't possibly be able to find it. We're down a Private Road, don'tcha know? You can't even see the entrance to our road ordinarily - it only appears to you if you drive past in second gear, reciting cornucopia handlebar squirrel reticence, while not wearing trainers!"
Whenever I find myself in that situation, I like to drive to that destination using nothing but the SatNav to direct me - just to prove that they're not so special after all.