By Paolo Sandoval There’s no question about it: the perfect designer bag is hard to find. And it’s harder still if you aren’t a seasoned luxury connoisseur; with the amount of fakes floating around and monstrous price tags on new retail, it’s a daunting task indeed. But, per the tenth commandment (or was that the first amendment?), swagging out comes before all, and, as runway look after runway look demonstrated during the most recent fashion weeks, a key component for the elite dresser is undoubtedly a tasteful carry-all. From the largest monogrammed duffle to the smallest calfskin cardholder…