With winter approaching here the furnace is starting to cycle.  Curious what y'all use to keep your guitars safe during the winter.  I've been using Music Nomad with the digital readout, but it is always a challenge to squeeze out enough water from the sponge as not to over humidify it while in the case.

I live in North Texas and have never bothered about humidity. Maybe I'm just lucky to live in a place where it's not necessary? 

I use an AirCare evaporative humidifier during the winter. Today hit 45% RH, so I plan on getting it out soon. There's usually at least one week out of the winter here where the relative humidity plunges quite low. I have no trouble keeping a comfy humidity with my unit, which I think is rated for 3,500 square feet. In actuality, it only has to cover about 250 sq ft (where my guitars rest), and it does so quite easily. It can be loud when the temp drops very low, and I might have to fill the tank more than once a day. But for much of the winter, it runs a little at a time, and I get 1.5 - 3 days on one tank of water. I also change the filter out every winter, though you can clean one with vinegar to prolong its use for another season.

I use a couple Venta humidifiers in the house. Keeps all my instruments stable and I find it's healthy for me as well.