We’ve all been there: arrive at hotel, unpack, discover forgotten essentials (sunglasses,dress, or most irritatingly, toothbrush). At the Ace Hotel in Manhattan,such absent-mindedness reaps rewards: Ace’s new Opening Ceremonyin-house store allows you to replenish your suitcase with souvenirs and travelaccessories designed by some of fashion’s hottest names – Alexander Wang, Commedes Garçons, Proenza Schouler and Maison Martin Margiela to namea few – as well as augment your wardrobe with the hip boutique’s usual rosterof under-the-radar international designers.