Buy the 2015 Old Farmer's Almanac!
Straw can get moldy when wetStraw can get moldy when wet and mites seem to like it because it has hollow stalks. Hay is better, however they will get used to the shavings. Try putting down some treats with the shavings, like dried mealworms. I think mine would walk through fire to get them!

2015 Garden Calendar2015 Weather Watcher's Calendar2015 Recipes Calendar2015 Engagement Calendar 2015 Everyday Calendar2015 Country CalendarNew Year Cross StitchLobster Rope Doormats