Random Riddle: Farmer’s Strategy

A farmer is trying to cross a river with a bag of corn, a hen, and a fox. The farmer’s boat is only big enough to take himself and one other item per trip. The hen cannot be left alone with the corn or she will eat it. Likewise, the fox cannot be left with the hen, or the hen will be eaten. How does the farmer get all three items across the river?
 
Random Riddle: Farmer's Strategy