I do have memorable holiday moments from my Jr.High/High School years. Here is one:
This was before our youth choir started singing up that Oakland Temple Visitor Center. We were at my Grandparents (mom's parents) home in Pleasanton and our whole family was there. My mom told my grandparents that her girls had a song to sing. I think the family thought it was just going to be a fun/silly Christmas song but it was a song called "Come, Jesus, Holy Son of God" and it's by Handel. We sang it in harmony and at one point in the song we are all singing different parts, sort of like a round. It is a beautiful song and our family reacted as such. We got an "Encore! Encore!" And my grandma got the video camera out for the instant replay and they made us move up onto the staircase, over looking the living room. It was cool to have our family make such a big deal about it.
I remember frosting cookies at my Aunt Nancy's a couple years. I always thought that was fun because, duh! frosting cookies! And being with my cousins is always fun.
Ok...I'm fresh out of memories...