S1, E3: It's the year's first snowfall, and of all things, Lisa and Corduroy are craving ice cream. Lisa's allowance is spent already, so Mom suggests Lisa use her own initiative to earn money to buy this snack. Lisa comes up with a great idea: she can clear her neighbors' sidewalks of snow! / Even with Buckaroo and Rosetta's company, Corduroy misses Lisa when she's away at school. Seeing a letter carrier deliver mail on her neighborhood block, Lisa decides to leave behind a surprise for Corduroy: a card to show she's thinking of him. While Lisa's at school, Corduroy decides to surprise Lisa back with a card, too. He'd like to leave it in the lobby mailbox so Lisa can truly have a "special delivery" waiting for her. But three toys sneaking down five floors has some unexpected challenges!