First of all, Hi! I'm new. I do not have a rat yet, but am seriously thinking about getting a pair. I've got most of my ducks in a row; there's just a few things im not certain about: the bedding, is chopped up cardboard ok? Aspen shavings?other alternatives? Is a tupperware tub with holes drilled in it and a chicken wire screen for a lid ok? or do i need a wire cage? When i go out of town for a couple of days can i just leave them a good bit of food, or do i need a sitter? Thats about it, i know its a lot of questions, but any advice will be appreciated. Thanks!