tinyE: How are the Sens gonna do this year?
I can guarantee 100% that they will... play some hockey.
blotunga: I might not even need a car if buses and trains are reliable and abundant.
They're pretty good all things considering, the
OCTranspo Travel Planner can help you plan your route. Note that some buses are Express and cost more.
OneFiercePuppy: ... check out the War Museum...
That's a pretty cool place. There's also the Museum of Nature, Museum of Science and Technology, and the Museum of Civilization. The Diefenbunker is pretty cool too. I see someone else also mentioned the National Gallery. And it sounds like you've already been to the ByWard market. There's also the
National Arts Centre (NAC) and if you're less than 30 you can take advantage of the
Live Rush promotion.
Also, if you are near to one of The Works
locations they're a great (though kind of steep) place for weird and wonderful burgers.