14. Mull all your drinks.
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You can make quick and easy mulled wine and mulled cider (or just warm festive apple juice) in a slow cooker. All you need to do is add your base drink (red wine or cider) then handfuls of some or all of the following: cloves, cinnamon, cinnamon sticks, allspice, brown sugar, apple slices, cranberries, sultanas, lemon juice, lemon peel, nutmeg, and ginger. It's all down to personal taste and will slowly brew away in about an hour, leaving your house smelling like Christmas.