I post on this topic often at this time of year : winter tyres. If you drive in snow or ice or rain, and/or in temperatures that are regularly below 5C / 41F, just get winter tyres. They're not a luxury item. They're not something that is only for "a driver's driver". Everyone should be using them.
If you don't believe me, take a look at Tire Rack's snow and ice tests of all-season versus summer versus winter tyres. All-season tyres are just not up to it. They don't work in snow, they don't work on ice, and they're not especially good in the rain. The rubber compound and tread design just isn't designed for slick or cold road surfaces.
Get summer tyres for warm weather, and winter tyres for cold weather and you'll massively increase your chances of not ending up on youtube in one of those multi-car-pileup videos.
I mean - as long as you're not texting or playing Pokémon go, or eating cereal, or reading or doing your hair or any of the other number of stupid things drivers seem to do now.
All-season vs winter tyres on snow
Summer vs all-season vs winter tyres on ice.
