Sick of Christmas? So is everyone else, which makes this exactly the right time to buy holiday supplies for next year. The lack of sentimentality you're feeling will also help you make logical choices (maybe the tree should be ever so slightly smaller than your living room's ceiling) and not overspend on clutter. Those snowman figurines might have seemed irresistible in November, but in January, they're just another reminder that the bleak winter still hasn't passed.
Imagine a world without electricity, water, or any other essentials. If we do not switch to more energy efficient systems, the world would soon be left without any resources. So, what should you begin with in order to make a difference to the world?