I like pine shavings as well. The course kind, not the fine shavings. I tried straw and found it to be a big mess. I put 6" of shavings on the floor and "fluff" it up with a hoe a few times a week. This helps with insulation this time of year as well as dries out the poo. Straw compacts too much and doesn't dry as well. That's my 2 cents.