Arthur Rides the Bandwagon & Dad's Dessert Dilemma

Arthur Rides the Bandwagon: Arthur does not approve of the new Woogle fad, but when everyone else has a Woogle, he tries to get one. Frustrated after several failed attempts, he starts playing with a bottle cap and starts a new fad.
Dad's Dessert Dilemma: Arthur brings a cake his dad made to a party in Mr. Ratburn's class celebrating Galileo's birthday. Everyone likes the cake so Arthur asks his dad to make more, but this makes his dad run behind on his other orders. He realizes this after Brain's mom starts bringing ice cream to the school. A subplot has Mr. Ratburn attempting to get Dad's cake by pretending to try to give anyone who is having cake a schedule of Spring Reading, but his final attempt does not work when it turns out that Arthur and dad are not having cake; they are making cakes for other people.