The path you're on looks different when you turn around.
Before you trade sandwiches, check between the bread.
Look at the footprints you've made.
Every piece of the puzzle that doesn't fit gets you closer to the answer.
It feels a lot colder when you're shoveling snow than when you're building a snow fort.
It's easier to throw sticks on the campfire than to try to restart it when it goes out.