Enough with the overdone beverages featuring four kinds of rum, six kinds of juice and a sugar cane swizzle stick. And ditto for those so-called "martini" menus, on which every imaginable concoction is called a martini, even when licorice or chocolate is involved. And don't even get us started on the horror of blue drinks. We're looking for something tasty, easy to drink, strong (but not noticeably strong), not out of a can or a mix, and not too gender-specific (scotch is such a guy thing, and cosmos are just too Sex and the City). Given these exacting criteria, then, the perfect drink is the Merc Bar's version of a Caipirinha. It's a refreshing, rum-based cocktail, simple and deceptively strong, just a little sweet, and flavored with lime juice and an abundance of sliced limes. It's just a matter of time before this lovely indulgence is co-opted by an annoying sitcom character, so enjoy it now while it's still kind of cool.