I've learned that if you drive by what looks like a warehouse with closed doors, textured windows and a sign outside that says "RUM FOR SALE", you stop the car and go inside.
In the case of Maggie's Farm Rum, you will find some tables, a bar and some tasty locally distilled rums inside. I recommend sitting at the bar where your view will include the still and any cocktail making. While you're there, order a cocktail from their menu. The menu does change but their tasting/cocktail menu is diverse. Cocktail hours are very limited, though, so be sure to call ahead or check their website. (Bottle sales are more often.)
It goes without saying that I'm happy to find more Pittsburgh-born alcohol. I've been enjoying the local breweries but it's nice to mix things up with some spirits now and again.