Forever 21 has invaded Times Square! The company opened its flagship New York store right across the street from the MTV headquarters this morning, but we scouted it at the opening party was last night. And it is MASSIVE — four floors, over 90,000 square feet, and 151 dressing rooms so that you can try on zillions of $10 shirts until your little heart's content (during store hours at least, from 8 a.m. to 2 a.m. daily). The storefront, located on Broadway between 45th and 46th Streets, features an enormous light board — you know, just in case you can't find the hugest single-brand retail store in Manhattan. And when you walk in, it feels like you're in a shopping mall with escalators down the center and overhead lights that are so bright they could blind you. But it's not a mall. It's one store. So how do we survive such a ridiculous shopping experience? How do we deal with SO MANY CLOTHES? Lucky for you, you have us as your guide.