We get that here in the winter (UK). We have "moisture traps" which are a long tall plastic tray (holds about 1pt water) with an inverted plastic mesh basket on top which is filled with calcium chloride granules - some pics here:
http://www.hardware-ironmongers.com/results.cfm?&ct_ref=690

It's probably not recommended for absorbing large amounts of moisture though, for instance we don't have one in the kitchen, only in the bedrooms. We have double glazed windows and coal-fired central heating which is always a tricky combination.

Gareth