Danica wrote:
I have considered getting a humidity-controlled cabinet humidor that
would ordinarily hold cigars. Any thoughts, experts?

My thought is that that would be too airtight, and that it would cost a
fortune to make one big enough to store more than one or two cakes. If
you want to set up a little controlled-humidity chamber so that you can
experiment with humidity fluctuation (an interesting idea) then I would
recommend getting a large-enough tupperware container and one of these:

http://www.cupojoes.com/cgi-bin/dept...h=DD&tier2=147
You could also get water-retaining crystals that are available at
tobacco stores. They come in little vials and are designed to keep
humidity at 70%. This is the cheapo way of controlling humidity. An
actual Credo humidification unit costs hundreds of dollars (or several
good tongs, if you want to think of it that way).