Hey guys, With school about to start I was wondering what your decoration ideas are for a high school science classroom? Thinking back on when I was in high school, I remember a few posters but that's pretty much it. Does it look bad if my classroom is relatively plain? I figure I'll buy maybe 3-5 motivational/science posters but I don't know what else I should do. I don't want to do too much just because I don't feel it's necessary and I don't have much wall space. Do you have any good recommendations of where I can buy posters for cheap?