GO Transit

[neonjoe]

Ford directs Metrolinx to study GO Transit expansion by diverting freight rails

How much you wanna bet that the optimum route to do a diversion of freight to enhance the GO passenger rail system will turn out to be the exact same diversion that the Wynne Liberals going to do that Doug Ford cancelled as soon as he was elected?

Yes, parking should be free at the station.  You need to incentivize people taking train.  Changing habits.

Is GO parking free anywhere else?

Go has several parking structures at stations that are owned by Metrolinx. These tend to suburban commuter stations and not their downtown stations. They are all free. Some are excessively large such as Bloomington GO.
I would expect that Breslau GO will have a large free lot when/if it's ever built. 
The change from commuter rail to a regional rail system should alleviate/reduce the need for parking. The original intention of GO was for 9-5 commuters, explicitly removing them from the car. With the ongoinging transition to regional rail, full time connectivity with connections to other modes at all hours of the day should reduce the emphasis on park-and-ride.