Chin proofing?

[luna_chin]

I have around 3 dressers and a bed in my room, which Luna could most likely get under.
I was just wondering, how could I chin proof my room? instead of making it look really silly with pillows underneath my bed to stop her from going underneath there, etc.

 

[Laluvschins]

I have been using really thick blankets which has been working for me so far but hear lately they have been sliding through one where it is a little thinner. Not the best way probably. I have heard cardboard works pretty good at blocking things off but make sure your lil guy does not eat the cardboard, watch him closely even if he may just be chewing make sure he is not ingesting. My boys are banned from cardboard for this reason.