Who can count all the Timmy's in Toronto? There is no need, as if you know what are the one close to your work and home about, then that's all you need. Our home Timmy's at Logan and Danforth seems to be ALWAYS busy and full. Mostly filled with elderly Greek men and some people with questionable mental health, but since they keep quite quiet it is okay. Sometimes the place is smelly, because it gets all kinds of crowds.
When writing this post I am thinking of eggsalad sandwich, which I enjoyed last time on that location. I even posted a photo of it, showing how good it looked with my tea. I miss it. But tea and ginger cookies still taste the same on that busy spot.
When planning a visit there, be aware that this is more a take-away place than a sitting in place, as there are seldom empty seats, though for some reason we have always found a place to sit there ;) maybe it is the neighbourhood luck.