SHOPPING IS about finding pieces that work for our ever-changing lives, satisfying a craving for discovery, and bringing some joy to getting dressed every day. And so we present our Shopping issue. In it, we feature everything you should buy this spring, from smart investments to major steals, and for the first time ever, ShopBAZAAR.com is carrying all of the covetable items on our Grand Bazaar pages (page 84). In Fabulous at Every Age, discover your denim muse—Hailey Bieber, Lauren Santo Domingo, and Julianne Moore are among the possibilities—as well as the right fit for you (page 108). Then get the lowdown on why you need the antiskinny jean (page 113), and read all about the season’s standout utilitarianchic pants and how best to style them (page 90). Elsewhere, we…