tristic, most of the answers to your questions are available in
this article I wrote a few weeks ago.
The highest discount you can get from GO Transit is 30%. You can as a student get a 40% discount on Greyhound. You can get a discount on VIA Rail as well if you have an ISIC card, but I don't know how much...I don't take VIA Rail nor do I need to know much about them for work.
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McMaster Combined Honours Cultural Studies & Critical Theory and Anthropology: 2008
McMaster Honours English with a minor in Indigenous Studies: 2010
Carleton University Masters of Arts in Canadian Studies: 2012 (expected)
We are people of this generation, bred in at least modest comfort, housed in universities, looking uncomfortably into the world we inherit. -- Port Huron Statement