I have 2 words for you WINTER TYRES

You don't need to stop and mess about with socs, chains etc... especially in mixed conditions but the downside is the cost.
My tyres were £550 for 4 if memory serves and I also picked up a 2nd set of alloys but they are an asset which could be sold on later if need be.
I got a set of Vredstein Wintrac Extreme for my golf GT last year. I was about the only non 4x4 that got down the country road near where I stay succesfully with about a foot of snow on it

passing all the Audi's and BM's abandoned at the side.
Over the course of last winter the fronts went down 1mm the back 0.5mm. This year they will be rotated round so I reckon they will give me about 5 years of winter driving and while they are on my normal tyres are not wearing out so they will last longer too.
Just got a set of Toyo Snowprox for the missus's MK3 Golf GTI for this year. That's how impressed I was with the difference in traction.