What can I use (other than sand) that will help minimize dust in my house from the brooder? I find sand to be stinky, so I'd prefer not to do that if I can find something else. DOes anyone buy dust-extracted pine shavings? Where? I've heard of hemp and cardboard bedding, but I can't find anywhere to buy it in the USA. Not even online, though brick and mortar stores are preferable. Thanks!