GIFTS FROM JOAN: Joan Rivers has given her daughter Melissa some great gifting tips over the years. “She’s an incredible gift giver,” said Melissa, recounting one tip: if there’s an occasion a friend is getting loads of flowers, give her “a credit so that after everyone has already sent theirs, they can get another one.” Soon, the public will get to judge Rivers’ gifting advice. The comedienne and host of E! Entertainment Television’s “Fashion Police” is putting together a gift guide that will be on Shoparatti, an online curator of daily deals, from Black Friday to Jan. 2. Tickets to a Broadway show, Ralph Lauren cashmere socks and items from Rivers’ QVC collection will be included in the guide, which will feature deep discounts off retail prices. Since launching in March, Santa Monica, Calif.-based Shoparatti has attracted up to 40,000 people daily to visit its Web site and garnered 33,000 ‘likes’ on Facebook. It presents an edited assortment of deals from the likes of Rue La La, HauteLook, Ideeli and Groupon for shoppers who don’t want to comb through the flood of emails they get from flash sale and daily deal services. “I see it as eventually like a ‘Good Housekeeping’ seal of approval, where being Shoparatti approved will mean something,” explained Melissa Rivers, who is Shoparatti’s editor-in-chief.