We will never be disappointed post-Christmas, if we put our hope in Jesus, rather than in the Christmas wrapping. Now, it must be said that if we entertain or are taught false promises about Jesus, we may be disappointed in the real one - he grows up to be the Scandalon, the stone the builders reject. But he is the God-ordained Cornerstone, and whoever hopes in Him will never be put to shame. Never disappointed. Never let down. Jon Bloom posts more helpful thoughts on how to have a hopeful post-Christmas melancholy, over at desiringgod.org.
...as long as the beautiful gifts remain unopened around the tree and the events are still ahead of us, they can appear to be the hope we are waiting for. But when the tree is empty and events are past, we realize we are longing for a lasting hope. [Read more.]