Nearly every bus now has a rack on the front to put your bike when you ride the bus. No time blackouts to use the rack but on the subway you can't get on from 7:00 to 9:30 am and from 3:30 to 6:30 pm Monday to Friday. All other times are fine to bring your bike on the train.

I don't know what part of Scarberia you are riding from but go to the City of Toronto site and they have PDF maps of the city showing all the different bike routes. I'm familiar with the bike lane on Birchmount as well as the trail through part of the hydro fields near Lawrence and Kennedy. There is a beaut of a route near Victoria Park Station that'll take you west towards the Don River trail. The Don River will take you all the way to Lakeshore Blvd, and then head over to Queens Quay's bike lane to Harbourfront.

But this'll take awhile. Luckily there are a lot of street routes you can take. If you can get youself to the Beaches, it's an easy and
fast ride in the lovely Lakeshore Blvd bike path all the way to Cherry Street. Then the Martin Goodman trail to
Queen's Quay. Great ride! Very flat and you'll get to ride a little bit in the Don River trail.