How about cutting out the open book so that the students who don't study and to their homework actually fail? When I was in school many years ago "open book" was only used for special ed students and others who couldn't carry a regular academic workload. Homework was assigned, but our grades were determined solely by testing our mastery of the material. If you could master the material without doing the homework or showing up for class on non-testing days, more power to you. College has become more like kindergarten with all of the hand-holding.