York Mart Copy and Computers is a great place to make photo copies and inquire about computer problems. I have gotten my laptop fixed a few times and have never had any issues.
The Finch and Keele Commercial Centre is a great plaza. It has restaurants such as Subway, Regino's Pizza, Tim Horton's Caribbean Heat, etc. Also, there are convienence stores, a pharmacy and many more .
Sentinel and Finch intersection. The Toronto Transit Commission (TTC) is available 24 hours. This is especially convenient. The TTC does not operate 24 hours in many parts of Toronto.