The object traded fairly carries two different satisfactions away from the same table.

A good exchange is not one person winning. Two people can leave the same table pleased for entirely different reasons, because each wanted something the other had less use for, and neither had to be outmanoeuvred for that to happen. Trades feel adversarial only when both sides assume there is one quantity being divided. Most real swaps are not shaped like that.

When you are negotiating anything this week, ask what the other person actually wants rather than assuming it is the mirror of what you want. The answer sometimes makes a straightforward arrangement out of what looked like a contest.