In all seriousness, about this time of year I do make sure I have a decent de-icer (Halfords in a trigger spray, not the aerosol muck) and keep the screenwash topped up. Other than that not much else unless I'm planning a journey then it's the Kendal Mint Cake, dragon glass, warm coat, sprouts etc.
However, the other car on the fleet is a 2014 XC90 and winter or all season tyres are a wonderful thing on the odd occasions the white stuff comes down. Unfortunately these days we do have this ridiculous marketing spread of winter, summer and all season tyres. Most cars come with what seem to be classed as summer tyres due to our current obsession with large alloys, ridiculously low profile tyres and the ability to do the Nurburgring in less than 10 minutes even though most of the time we're doing 5mph on the way to or from work. For the last few family wagons I've run the factory fit tyres until it's justified to get rid and fitted winters or all seasons and run them year round. Sounding a bit Wurther's Original but it's how tyres used to be