Now that the weather is turning towards winter I'm wondering if the nesting boxes won't seem as "appealing" to my girls. They are Rubbermaid tubs with lots of pine wood shavings. But I hear them scratching away every day to find that "just right spot" and most times the egg is right on the bottom of the plastic bottom. In the winter that's gonna be COLD! Are there "liners" or whatever that I can put in the very bottom with the shavings on top? What to do, what to do!! Anyone got ideas and what works good for them?