Leeds.
I've safely returned to Leeds from my trip to the ICE 3 conference on the shores of Loch Lomond, Scotland. Given the cost of flying to Glasgow, and the unreliability (and sadly, occasional catastrophic failure) of the British rail network, I ended up driving myself to Scotland and back in a rental car, and this worked out pretty well overall. As I crossed the North Pennines into Cumbria, the snow-streaked landscape did look as bleak as the frozen steppes of Siberia, but happily things improved again as I approached Glasgow. I stopped for lunch and a spot of sightseeing in Glasgow itself, and promptly lost my way trying to re-enter the motorway towards Loch Lomond, but this minor diversion was nothing against my confusion on the way back - I guess it would have helped had I known that on Scottish roadsigns, "Carlisle" is the codename for the south (providing overt directions to England is considered to be in bad taste, perhaps?). Although this cost me an hour, there were no major other problems on the way (except for the occasional Fiat driver appearing to suffer from the delusion of being at the wheel of a Ferrari) - and kudos also to the good folks at Google Maps, whose directions served me well in getting to Scotland and back.
