For the tenth year in a row, free Muni rides will start on New Year's Eve and end on New Year's Day, hauling pleasantly tipsy to wildly aggressive revelers around the city. (Be on your toes, folks.)

SFMTA reports that free service will be scheduled as follows:

8 p.m., December 31 to 6 a.m., January 1
Muni Metro service extended to 4 a.m. between Embarcadero and West Portal stations
Extra Owl service (1 a.m. - 5 a.m.): 5 Fulton, 14 Mission, 22 Fillmore, 24 Divisadero, 38 Geary, 90 and 91 Owl and the L and N Owl bus routes
Service on the F Market historic streetcar line provided by buses after approximately 4 p.m.

Caltrain (www.caltrain.com) will depart its final New Years train from the 4th and King streets Station at 2:15 a.m., Jan. 1. All Caltrain and Samtrans service will be free after 11:00 p.m., Wednesday.

BART (www.bart.org) will provide additional service and stations will remain open until approximately 3 a.m., Jan. 1. BART service to the East Bay will be separated between Embarcadero and Montgomery stations. Pittsburg/Bay Point and Richmond trains will stop at Montgomery (not Embarcadero) and Dublin/Pleasanton and Fremont trains will stop at Embarcadero (not Montgomery).

Read more about the NYE schedule here.