I get panicky without pen, paper, wallet, keys, cell phone, camera, reading material, and other essential paraphernalia at my side. Yet lugging a briefcase or backpack around, as I do now, is overkill. And while I’m already a sartorial disaster, so-called fanny packs are out of the question. What I really need, and intend to acquire directly, is a man purse. My hunt commences this weekend. Any tips, guys? Ladies?