Via
Rumored to be the reason UberPool's flat rate commutes started in the first place, Via offers the same $5 carpool option at any time between 6:30 a.m. and 9 p.m. You can count on adding a few extra minutes to your ride, but when compared to waiting for the Subway, the only decision you really have to make is whether or not to start an awkward conversation with the other Via riders.
[Photo via @abudagov]