I use fleece in my cage and lately the smell has just been killing me! I do a thick layer of newspaper, a towel, and then fleece (sometimes two layers of fleece). I heard someone mention somewhere to put dryer sheets under the fleece....well I don't think that does anything. So does anyone have any ideas on what I could do? I just changed their fleece yesterday! I'd like to only have to change it every 3 days or so.....Any ideas?