To match the internal theme about the need to move forward in life, creator Jenji Kohan consciously ended a lot of scenes with the word "go," which is the title.
Show creator Jenji Kohan revealed on several DVD audio-commentaries that each season finale was influenced by some genre or specific directors she loves and thinks about when writing those episodes. For season three it was Robert Altman and his ensemble pieces with lots of subplots crossing.
Shane's turtles are named Franco and Warhol. Franco Harris is a legendary Pittsburgh Steeler with a statue of the 'Immaculate Reception' at the arrivals area of the airport. Andy Warhol was born in Pittsburgh, with a museum dedicated to his art located in the North Side area.