What are ways to dehumidify an apartment without a dehumidifier?

I’m up in the mountains in a very rainy region, in a small stone-wall apartment. It’s very damp and quite cold (50–70 F), without much air circulation, and I notice a moldy type smell in the bed/blankets/pillow/couch. Towels after showering take two days to dry. Any at-home tricks? The most important thing would be a solution for the bed, since I think it’s making me congested. (So far leaving the gas stove flame on and getting a fan have been suggested. Are either of those really going to help?)