Princess Auto is basically Canadian Tire if you stripped away any decorations. Filled with aisles and aisles of tools, equipment, and some of the strangest liquidation items as well (I love going here for those rows and see what I can find in the discount electronics aisles).
I'm not going to really describe it at length as it's too difficult to properly quantify, but it's pretty much as close to a one stop multi world bazaar of tools and parts of all sorts. To really understand it, check out the website or just take a 1/2 hour and walk through the place. God knows what you'll find that might be useful.