It's the most wonderful time of the year...or is it? For me, the holidays meant a cold, allergies, sinus infection, laryngitis and a side dish of antibiotics. Here are 5 tips to staying well this holiday season: 1. Wear a scarf. We wrap plants and pipes when it is cold outside to prevent damage. The same is true for your throat and vocal cords. Unlike a turtleneck, a scarf is removable once you step indoors to prevent you from overheating. 2. Invest in a humidifier. As t