I can't imagine not celebrating the holidays with my Sims. It adds so much fun to my gameplay. It's a great time for my families and friends to get together as well. My supernatural families also enjoy the holidays. I love that we can create our own holidays and add activities that we want to play, leaving out others we don't want. A holiday celebration can be as simple as having a grand meal with friends and family if that is all you want to do. The major holidays for my sims are Christmas and New Years, and I always add the eve and the actual day to my calendar to allow for even more time for events to enjoy the season!