Thanksgiving and Christmas are the two holidays most likely to cause scheduling conflicts, so it’s worth understanding exactly how they work under a standard Texas order.
Thanksgiving
Thanksgiving possession alternates by year. In the year you have it, possession typically runs from school dismissal the day before Thanksgiving through the Sunday (or Monday, with extended possession) after.
Christmas
The Christmas school break is split roughly in half, and which half each parent gets alternates by year — usually the first half runs from school dismissal to a fixed midpoint date, and the second half runs from there until school resumes.
Because these dates depend on your local school calendar and your specific order, confirm the exact dates against your decree each year, and check the FER Calendar. If you expect a dispute over a holiday exchange, having a certified copy of your order and a witness on hand is always a good idea — see Keeping a Visitation Denial Journal.