When invited somewhere, initially ask what you can bring. If you are told "nothing" or "don't worry about it" still don’t show up empty-handed. If they are welcoming you to bring food, bring your favorite holiday dish to share with the rest of the party. If it is a more formal occasion, show up with some flowers, or you can never go wrong with a bottle of wine or champagne to ring in the holiday. Wine charms are also a great gift, or cute paper hand towels for the bathroom are both decorative and useful. This is just a little something that shows you appreciate the host, and are grateful for the invitation to their event.
This week is a good week to stock up on hostess gifts for the holiday season if you aren't planning on hosting a party at your house, but you will be attending some in the very near future!