As a Sagittarius born in December, two weeks from Christmas, I’ve been the recipient of far more birthday-Christmas combo gifts and Christmas-themed gifts than most people get in a lifetime. And most of my life, I’ve lived in homes with small living rooms, including a true one-room loft space (900 square feet) and a midcentury home where I could barely wedge in a coffee table, couch, love seat and TV. So because I’m a holiday-loving, Christmas collectible-collecting, small-space living person, I’ve had to be creative when decorating for Christmas. I’ve compiled some tips from my own experience and talked with pros to get you in the Christmas spirit, no matter…