I've had my Norbert now for just a little over two years. When he was just a wee little dragon I kept him on cage carpet. When he upgraded to a bigger cage, he upgraded to sand as a substrate. He's been on sand now for almost a year and a half. My question is what kind of substrate do you beardie owners use? I'm thinking about switching substrates because sand is rather expensive $15 for a 10 pound bag, and I need 2 bags. Sand is also real dusty and its a pain to get it all out of his cage. So any recommendations would be lovely. Thanks!