Holiday Co-Pilot exists because "who has the kids for Christmas" is really a dozen smaller questions — winter break, religious holidays, summer, first-year splits after a separation, travel windows.
The guides here are practical, not sentimental. We cover the common approaches parents actually use, the tradeoffs each one carries, and how to write the rule down so it does not get renegotiated every year.
Seasonal motifs stay subtle and stay useful year-round — this is a planning tool first, a holiday card never.