Yes, the holidays beckon.  And there is now substantial research for econ nerds on what makes a good gift. And yes, gift-giving services are old news, but we found one we like: wantful. Through its simple site filled with carefully curated stylish things, wantful gift givers select twelve products they’re sure their recipient will love.  Wantful packages the items into a beautiful, personalized giftbook printed on Japanese rice paper and sends it off.  Recipients browse the book, choose their gift, and tell wantful where to ship it.  Stylish, easy, and personal — what could be better?