Have you noticed all the local artisanal chocolatiers popping up like Gaps? Seniors with a serious sweet tooth can check out the best of them on the Chocolate Tours run by Gourmet Walks. You’ll enjoy truffles, dark chocolates, ganaches and hot chocolate at 7 shops in 3 hours. And bring home plenty of free samples. It’s not a mob scene. Only 14 people per tour. $49 Their gift certificates make a sweet holiday present. Gourmet Walks offers similar perambulations on Hayes Street and in Napa.