Cat litter for removing moisture

[GrumpyGramma]

In a thread about moldy-smelling yarn, cat litter as a moisture absorbent was suggested. Does anyone have any idea of how it could be used as an inexpensive dehumidifier? Seattle is not known for it's arid weather and I sometimes feel like soaking up some of the humidity in my apt. might be a good idea. It's not damp enough that I have mold problems, just enough to make it feel colder in here, if were less humid I wouldn't want to turn the heat up to dry things out.