I have a few wrapped gifts for the kids under the tree from dh and I (GOTTA have presents to open on Christmas morning!!! Although, just because we couldn't STAND not opening any till then, my parents began a tradition of opening one's smallest present on Christmas Eve . . just to take the edge off.

).
On Christmas Eve, the stockings are placed in each child's strategic, predetermined area, and in the morning they are bulging with treats and small gifts from Santa, while unwrapped gifts from Santa surround the stockings.
It's all done with Santa-magic. (I believe; do you??

)