Spare pair of wheels.
I am not a fan of OM wheels so have bought better quality ones for my bikes. I aso have one set of the original wheels that I had detensiond and retrued at the LBS and these are my winter/foul weather wheels. I also use Michelin Pro series tyres that are not the cheapest around so have a pair of Cheaper Lithions fitted on these wheels. Plenty of punctures in winter and tyres get cut up and ripped very easily in wet weather so the although the Lithions do not give as much grip as the
PR's--They are cheaper and a bit less prone to flats.