If you are still busy with festively decorating your apartment, then take into consideration that all those lights look very cozy but cause a lot of extra energy. On Love Green I just read that one pair of fairy lights can cost you up to 5 € extra during those festive weeks. And usually you have more than one in your house. So the suggested alternative: LED – light chains. Those are more expensive to purchase, but last much longer and reduce your energy bill.
Image: Flickr laszlo-photo