Although you can never really be too cool for school, the trapper keeper may have you feeling that way. Introduced in the late 1970s, the newfangled zipped binders, usually called the trapper keeper, bettered the basic binder with its colorful and useful pockets, zippers, folders, and tabs. Rather than organizing into a few different products like tabbed binders, folders, and something to hold your loose papers, a trapper keeper is ready for you already.
