Based on the booklet, in Eastern Ontario, this is what I anticipate doing.
LCBO, Jean Coutu, Rexall, Shell, Sobeys, Foodland and Metro (not in booklet but they will have one). I will spread the groceries out over the promotion and cut myself off the shopping trip once I have reached the threshold needed.
I will do BMO as a bonus on my card, Lowes on DH card and Staples on DS card.
This promotion is definitely going to be tougher to do and only worth it because I can do a couple of cards at the same time to minimize my driving.
This will definitely discourage a lot of the people who did many multiple cards (some did 5 or 6 cards last year)