BKF Available in Canada at Williams-Sonoma
In addition to being available online, BKF is available at Williams-Sonoma Stores found in Vancouver, Calgary, and Toronto. It also available at Golda's Kitchen in Toronto and they sell at $CDN and ship worldwide.
It's also available at WalMart in the US, so it may also be available at WalMart in Canada.
It is simply not feasible to get BKF where I am, but I have found that Stainless Steel scouring pads work amazingly well. Because they too are made from Stainless Steel, they don't rust, won't scratch the stainless steel pots, and do a great job of picking off the burnt on bits of stuff. These are not SOS type of pads, the metal surfaces are much broader... sort of linguine sized ... rolled into a coil to expose lots of edges. They won't "shine", BKF or Lagostina SS cleaner or similar are still needed for that, but they do come perfectly clean after mother comes to visit! The SS pads seem to be available at every store on this little island.