This, especially combined with meaningful path choices.Special Special Tool: Let the players roll the dice for wandering monsters and tell them what will happen on each number before rolling.
"You want to get to the old cemetery on the shore before sunset. Okay. You can follow the winding road, which will take about 2 hours, and there's a 1/6 chance you'll meet the gray rangers the evil duke sent out on patrol. Alternatively, you can cut through the hills, which will take only 1 hour, but there's a 3/6 chance you'll encounter the aggressive flame crows that hunt in the hills. Make your choice, prepare, then roll a d6."