Almost a year ago I asked about using room air conditiong to lower the humidity in the room/studio that I keep all my photography gear in. Lance B suggested to just buy a De-Humidfying cabinet.
This really has been one of the best investment that I've ever bought. It's so simple to use, just plug in, set the humidity level and put your gear in and it's then stored in a completely dust free enviroment at a set RH% level.
We have been having in excess of 90% humidity for weeks, it can actually even be higher in the colder winter months. I just don't have to worry about my gear anymore.