If you already have lamps then you can just change the lamp shades and this can affect the lighting. Lamp shades are a really cost effective way of doing things. Just keep it simple and experiment with different options.
Having said that if you do have the money to purchase some new furniture then that is a lot more fun. It is important to set a budget though prior to looking as you know what it is like when you are out shopping and you get carried away with what you see.
This should also really be the focus of your Christmas decorations. Of course hanging stockings from the mantle is traditional. You could also have a lot of fun just by finding a quilted stocking or even sewing some that are either in red, white, and green colors or just play around with a lot of Christmas motifs like trees or berries.
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