Hot chocolate, spiced cider, and flavored coffees are seriously what keep me going when it's frigid outside. Grab a Christmas cactus that blooms indoors if you want to brighten up your living space. Unlike a poinsettia, it will bloom and thrive for years.
Orchids and violets readily bloom year round, so add some of those plants if you need something green and cheerful to brighten your mood. I like to embrace the cold season myself. I indulge in yummy Christmas goodies and park myself in front of the tube for Hallmark's Christmas specials.