So for the first time I've got separate winter and summer tyres for my car (I'm in a mild climate, so it's not usually necessary, but this one came with winters, so I picked up a set of summers to go with it)
What's the best way to store the ones I'm not currently using to ensure the longest life & avoid damage? They're mounted on rims, and I've currently got them lying flat in the back of the garage, so they're out of the light. Is there anything else I ought to do? Should I keep them at running pressure, or change it?