Yeah, that's what I do. That or a vacuum bag. But I'm fine with bags because I don't like microwaving my food in plastic, so no matter what, I have to dump it out onto a plate or bowl. I'll only microwave in glass and try to store only in glass (or the ceramic-type things like pyrex and corningware - you get what I mean) too, but we have a limited number of those containers yet, so sometimes I have no choice but to store in a plastic container.