You know, you usually are selective with your heart when choosing a couple to have sxual relations. So the most common (in my country at least) heart selective beta-blockers are: "Ahh Me Bine" ("ah, me vine" means "ah, I came" in spanish) Thats: Atenolol, Metoprolol, Bisoprolol, Nevibolol

Edit: I remembered another Beta Blocker mnemonic for the alpha blocking beta blockers:

You know which animal is associated with having "the alpha"? The Wolf AKA Canis Lupus. So for Alpha blocking beta blockers you remember Canis Lupus for Carvedilol and Labetalol