Courteney Cox knows that the best hair dye can be picked up at a drugstore for $9 — but some products, like Edward Bess eye shadow, are worth the splurge. In the spirit of sharing her favorite tips and tricks, the actress is writing a new blog for xoJane.com, the latest creation of former Jane and Sassy founding editor Jane Pratt, where she’ll post at least twice a month, her rep confirms to PEOPLE. (Estranged husband David Arquette created a T-shirt for the site earlier this year.) As the designated home editor for the site, her column focuses on her lifestyle essentials, such as Clairol Natural Instincts Brass-Free For Brunette ($8.99), her favorite hair treatment for “dark-haired girls who don’t like red hues coming through.” She also revealed her Edward Bess products-of-choice, Ultra-Luminous Eye Shadow ($30) and Sheer Satin Cream Compact ($60), in her first post. But she’s not the first celeb style icon who’s taken her know-how to the blogosphere. Gwyneth Paltrow updates fans with lifestyle advice, workout plans and recipes on her online newsletter, GOOP.com, and former reality star Lauren Conrad launched thebeautydepartment.com in April, where she dishes out details on the latest in hair and makeup.