By far the best ice cream in the city. Greg's usually has a staple of flavors including coffee toffee, roasted marshmallow, trail mix, green tea as well as more classic flavors like chocolate, vanilla and strawberry. For $5.40 you get two huge scoops and your choice of two flavors of ice cream.
I visit far too often and have sampled most flavors. RM, CT and Peanut Butter and Jam top my personal list but pop in around the holidays when they have cool flavors like pumpkin (halloween) and and candy cane (christmas).
Truly a Toronto institution and its central location at Spadina and Bloor makes it easily accessible for the ice cream lover. Stop reading, start eating!