My algebra teachers has us use binders to keep track of our papers and it's wonderful. I love them, it keeps me organized.
My newest pet peeve is the stupidity of teenagers today. They really are just plain dumb sometimes. For instance, the ones in my French class don't know where Liverpool is. So I thought to be nice and not completely give the answer away I said it's where the Bealtes are from. They didn't know who the Bealtes were. So I explained that it's the band with John Lennon. Low and behold they didn't know who John Lennon was. Then the girl behinds me goes did they sing "You ain't nothing but a hound dog."? At this point I didn't care I just told them it was in England. Then they asked me if Madrid was in America. (For those who don't know it's in Spain.)