I did not think people were changing to winter tyres in this day and age of all weather ones available.....its not the 1960's
i have never been stuck in snow ice or mud and keep mine on all the time
the only thing i do is hose off my alloys regularly and clean the inside of the arches as this gets forgotten until summer with most people
so keep you nice alloys on,get decent tyres and hose off,just saves all the faf
luigi