Cute & Easy
My doctor advised me to get a humidifier, but I had a bad experience with one of those big unwieldy ones.  This cute little "personal" humidifier is easy to fill up and fits neatly on my night table.  I point the mist in my direction, and it goes for 8 hours.  It might be my imagination, but since I've been using it I haven't been getting sinus headaches.
Rating: 4 stars