Mos Mos is a cute little coffee shop outside King Station. It's pretty unique with their sticker ordering system. My friends introduced me to this place. It's a nice change to have a Cafe au Lait vs. Latte (way cheaper)! I usually have the regular coffee - skinny double single aka two milks one sugar. Their brewed coffee is good for the cafe au lait. I love lattes so when I'm not feeling for a latte this is a good alternative.
Their system is good because you can order and then go pay so while you're paying they are making your order. It gets really busy in the morning but the line goes pretty quick. You can also purchase a prepaid card if you go often.
I would recommend you to check it out if you end up being in the Yonge and King area in the path. The prices are slightly cheaper than your typical coffee chain like Starbucks.