> every exam was take home

When I was at MIT, most exams were in-class, but open book, open notes, open whatever you wanted to bring with you. And of course that just meant the exams were much harder, because they could assume you had all the necessary reference materials at hand and didn't have to conjure things up from memory. "Cheating" was pointless, because everyone else in the room was struggling just as hard as you were.

The advantage(?) of take-home exams à la Caltech is that they can be open everything and 3–5 hours long :-P (For what it's worth, being able to listen to music during an exam, ctrl+F a digital textbook, etc. was super awesome; it would deeply sadden me if that becomes infeasible in the future once enough students stop caring about the Honor Code....)