Have you ever heard of Megabus? It is a bus line that offers $1 fares.
Usually, the fare for a bus ride with Megabus is $35 one way. However, each trip offers a $1 fare.
Try going onto megabus.com and searching for a dollar ticket. Basically, the farther into the future you book your ticket, the better your chances of getting a cheap ticket. When I took the screenshot below, it was August 13th.
A $1 trip from Pittsburgh to Philly? That is a steal. The toll itself costs $27! (Disclaimer, you have to pay $2.50 …