Kids get to open one present on christmas eve but it cant be the best or one of the better ones, bkjng cookies the week before, decorating and putting up lights and otanments, a christmas tree, watching christmas movies and listening to christmas music (for adults mostly) get friends from church or work to come over and either have dinner or just sit around and play a board game. Hope it helps
Our family has many. We as parents combined favorites from each of our families to make our own. One is making gingerbread men, going out to dinner Christmas Eve, always getting a fresh tree, purchasing a new ornament for each family member each year. When the kids leave home they take their ornaments with them and have something to start their new tree with.
I think that all of the things that a family can do as a group on Christmas Eve will create lasting memories. Opening presnts tends to be the end of the whole period and I feel that the build up to Christmas morning produces the memories that last many years.