We do pepermint oil soaked cotton balls oin little cloth sacks that hang strategically. Additionally, we cut the bottom off of a few soda or water bottles, and used themm as "dishes" for more soaked cotton balls. (If you cut the bottles carefully, you can leave the UPC in place, and still get your nickle deposit!)
We scatter then throughout the interior, in cabinets, and in outside storage. Once we cover-up, they are in there until spring.
We have these, we scatter a box of Bounce, and we have two plastic tubs of the dehumidifying crystals that we leave inside the TT from November through March.
2014 RAM 2500 Laramie 4x4 Quad Cab w/Cummins Turbo Diesel, 2009 Rockwood 2607, and 3 'yaks!
300W of Suntech Solar, a Rogue MPT-3024 Controller, and a Xantrex PW2000 Inverter