Continuity mistake: Peggy decorates the bathroom next to the garage, but when her class arrives to have a look at it, they all go upstairs.
Suggested correction: That's because she decorated both bathrooms. She even says so in the episode.
Plot hole: When Dominique is on TV, she says she got the shoes from Al's store. Than the Amish guy comes out to confirm she broke her leg from the shoe he made. Al says yes. She got the shoes way before Al knew he had no more shoes and before they even hired the Amish guy. How can she break her leg from his shoe if he wasn't hired and making them yet?
Suggested correction: Al was passing the blame.
The correction above is correct.