My hubby just got back from six months in Florida and he is having a very hard time with the dry AZ air. Since it's winter, we also have the heat on and that makes the air dryer still.

I remember in my childhood in NY we used humidifyers in the winter, or when I was sick. Does anyone use these these days? What kinds do you use? Or are there inexpensive tricks to come up with some home solutions that add air humidity?

Do houseplants help?
Open containers of water?
A desk fountain?
Look for used humidifiers at good will?

One thing we are doing tonight is boiling some water in an electric tea kettle for dan, in the bedroom, so there will be some nice hot steam added to the room for a while.

Do you use humidifiers and when? What kinds?