I use pine shavings as well! The BEST pine shavings in my opinion are from a company out of NC, the shavings called Beaver Bag shavings, or something like that. They are in a white bag with purple lettering. They are nice BIG, thick shavings that really hold up to all the scratching and pecking, without breaking down into sawdust. I love them! Is anybody familiar with these shavings?