Part 1: The body in the world. The visceral heuristic: cold shoulders and clean hands -- The visionary heuristic: hills and home runs -- The momentum heuristic: intuitive physics -- The fluency heuristic: the power of penmanship -- The mimicry heuristic: feeling your inner ape -- The mapmaker heuristic: getting away from it all -- Part 2: Numbers in our neurons. The arithmetic heuristic: "for just pennies a day" -- The scarcity heuristic: supply and desire -- The anchor heuristic: why things cost $19.95 -- The calorie heuristic: "will work for food" -- The decoy heuristic: please don't make me choose -- The futuristic heuristic: a wrinkle in time -- Part 3: how the mind makes meaning. The design heuristic: simplicity and purpose -- The foraging heuristic: exploring and exploiting -- The caricature heuristic: engineering prejudice -- The cooties heuristic: contagion and magical thinking -- The naturalist heuristic: back to the garden -- The whodunit heuristic: murder and mortality -- The grim reaper heuristic: loneliness and zealotry -- The default heuristic: not to decide is . . .