I am having steel wheels and winter tyres fitted to my Volkswagen Jetta. The winter tyres are Bridgestone 205/55 x 16 (same size as existing tyres). How should my existing alloy wheels and tyres be stored during the next few months? I am thinking about tyre pressures and whether they should be hung inside the garage, or stored in my garden shed. Will the same procedure apply to the winter set for the following eight months or so?