Store Openings and Sales This Week - Scouting Report The film noirish footwear label CHARLOTTE OLYMPIA has arrived from London, setting up its first free-standing United States store on the Upper East Side. With prices that range from $595 for flats to more than $2,000 for sumptuous evening shoes, it is not surprising that Charlotte Dellal's designs have a following among red-carpet denizens like Beyoncé and Sarah Jessica Parker. In addition to its Sirens collection of about 30 ultrafeminine styles and several exclusive designs, the shop, at 22 East 65th Street, (212) 744-1892, stocks the label's jewelry, evening bags and hosiery. ... RAG & BONE, which has colonized much of Manhattan over the last several years, now has a sixth outpost, on the Upper East Side. The store, at 909 Madison Avenue, (212) 249-3331, takes over a sprawling former bank and carries apparel and accessories for men and women priced from around $100 for women's tees and scarves to $1,500 and above for men's suits. Though the lower level has an original iron vault, it's empty. ... With long summer days at Main Beach and on Main Street in East Hampton arriving soon, the breezily modern resort-wear retailer EVERYTHING BUT WATER opens on Saturday at 66 Newtown Lane, (631) 324-5693. The boutique, built out with reclaimed wood, will offer suits and apparel from several designers, including Mara Hoffman, Eberjey and Melissa Odabash, that are available only at this location. Sandals, hats, pareos and a selection of jewelry - geometric pieces by the Seattle design studio Iacoli & McAllister and vintage amulet-adorned baubles by Nicole Schumann Designs - will give a sand-destined Hamptonite some finishing touches. TWINKLE BY WENLAN, HUNTER DIXON, BY SMITH and PINKYOTTO are hosting a sale of their playful, contemporary collections on Thursday and Friday with discounts of up to 75 percent. The goods, heavy on dresses, include printed silk pieces marked down from $326 to $120, color-blocked maxis reduced from $154 to $80 and eyelet looks that were $295 and are now $130. At 545 Eighth Avenue, (212) 625-8710. ... A sale of REBECCA MINKOFF'S subtly punk designs, with reductions of 30 to 70 percent on handbags, apparel, footwear and men's bags, continues through Sunday at 260 Fifth Avenue, (212) 677-7829.