Following up on the notion that deal points should be up front and that legal documents have become spam, it is consistent with honorable dealing to present the exciting bits first.  Deal points, unusual requirements, things that the reader might be surprised by.  

Accordingly, an agreement or other form document should become less interesting as one moves towards the back.  

We already do this to a certain extent, but people in the trade also play on this effect.  So, it is said, the best location to place a mine is about two-thirds of the way through a document.

It won’t come as a surprise that a system of transacting based on precedents has the feature of increasing banality built in.  Presuming that there is familiarity with what came before, the specifics of the deal is the list of changes, which sits on top.   The familiarity can be one’s own or borrowed — social knowledge.