Winter months in Boston are brutally dry.  That being said, as a college student, I am way too lazy too fill up an enormous humidifier every night.  Air-O-Swiss has created a tiny water bottle humidifier that I can turn on at night and keep right next to my bed so that I don’t wake up in the morning feeling sicker than I did the day before.  It takes no time at all to refill every evening, it takes up almost no space, and it works amazingly well. 

Image source:
https://www.google.com/search?q=air+o+swiss&espv=2&biw=1421&bih=758&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjm7NHowv3KAhWH2hoKHS9dDKkQ_AUIBygC&dpr=0.9#imgrc=fJpqkIwVnXsGZM%3A