Because four is the exact number of cards you can buy before the shipping cost from US buyers goes through the roof. And leading in to a perfect time to get caught up on the mailbag, since Good Friday and Easter Monday are holidays for Canada Post.
their wiki page. And I've probably placed far more thought into a card of Zan Tabak than anybody ever did outside his immediate family.
And there goes one of several envelopes that have showed up over the past week.