What a fab idea!!!!! That's very smart of you to think of that!
As soon as I get my finances in better order, I'd love to have a few of these as well

Luna matts when she wears clothing, so I've been leaving it off of her, but it's getting ready to cool off here in Florida and I'd like to be able to put her in a sweater without worrying about her coat. Awww, undershirts for our babies, how cute!