Christmas without crackers feels a little wrong . They might not look like much, and nine out of 10 times, they're just filled with tat, including a joke, an item you'll no doubt never use and a paper party hat which rips within seconds, but the Christmas set-up really doesn't feel the same without them. But if you're feeling stressed with all the Christmas prep you have to do, so you send your pre-teen into the shop to pick some of them up, you'll get a nasty surprise when they come back empty-