In my room at school I use pant hangers as a way of hanging the posters in my room. They provide an easy and cheap method of displaying the posters. It makes the space look simple and clean, while also being fairly quirky and interesting. Normally I would put posters up on my walls by using sticky tack or washi tape. This tends to eventually slide down or peel off, and I end up with copious amounts of tack and tape to hold up the posters. I think the hangers are a fun way of holding up the posters while being reliable in that I know they will stay up.