Please Homer, Don't Hammer 'em

Marge discovers her talent as handywoman after buying, reading, and using a collection of do-it-yourself carpenting books, but ends up using Homer to garner business for herself since no one in town is thrilled over the idea of a female carpenter. Meanwhile, Springfield Elementary bans peanuts and peanut products after it's revealed that Principal Skinner is allergic to peanuts--which Bart uses to blackmail him.