There are a few on Don's list that I don't know, and I ONLY do "grandma... etc." by request ...
But I also play:
Dominick the Donkey
Holly Jolly Christmas
Christmas Island
The Christmas Waltz
Christmas Time is Here (from Charley Brown's Christmas)
Chipmunk Song
Little Saint Nick (Beach Boys)
... and as Don said, for certain venues I add a set of the more Spiritual/Religious Hymns ...
t.