Acting as a Winter Sports Travel Specialist, create a 10-day winter vacation itinerary for the Swiss Alps. Recommend ski resorts in Zermatt, St. Moritz, and Verbier. Include options for snowboarding, après-ski activities, and cozy mountain accommodations. Provide advice on ski passes, gear rentals, and the best time to visit for snow. 
<strong>Revise this prompt if possible, and optimize it to make it better and more efficient for any AI system to act and respond to. 
If possible run your optimized version.</strong>