OK I know it is "belt and braces" but I just popped into CostCo and they are selling packs of Michelin Composite Snow Chains for £49.99 + VAT per pack of two. These are also approved for use in France (where their kind police will fine you if you are in the alps without chains and get stuck) This price is about half the UK internet price. See video's on this site Michelin Easy Grip Composite Snow Chains - FREE UK Delivery and also on Youtube (it is in French but worth a look) Chaine Neige composite Michelin Easygrip : montage et utilisation - YouTube If you check out this website you can also get them for your shoes Easy grip chaine Details from back of the pack I bought are below you need to know the size plus tyre profile (i.e. 16" and 205 55) as there is a different fittling for 16" 225 50 etc) For example for my vehicle it is L13. So when things get bad it is going to be winter tyres plus a set of these in the boot.