We don’t have to tell you: The holiday season is beyond busy. Whether you’re a full-time nanny or a part-time sitter, pretty much all caregivers are getting more requests to help, more than any other time of the year. The truth is, families are relying on you to manage (and make) work parties, school events, shopping excursions, travel, and more. In fact, holiday caregiving is in a category all its own, with high demand, irregular…