Bad economy or good economy, finding a bargain is a thrill. How smart you are, you will think as you gaze at the best buy in your closet, that you were able to find that of-the-moment hot-ticket item for half price while your neighbors had to pay top dollar. And that’s what the best shoppers do: they don’t buy cheap items—they hunt, scour, and hustle until they can find great items at lower prices. And, believe us, it takes a lot of work. Lucky for you, we’ve done a lot of that work for you. We asked the pros, expert shoppers, and proud cheapskates (meet some of them here) to tell us how to find the best bargains in the county. Put down those coupon-clipping scissors and read on. Deja Vu 107 N Broadway, Tarrytown (914) 366-4657 Pop in here to uncover designer items—say, Manolo stilettos or Prada frocks—at drastically reduced prices. Styles vary from casual and formal to vintage, with some of the merchandise brand-new. Deja Vu Again 27 N Main St, Port Chester (914) 481-1160 Scoop up gently used—and some new—designer labels like Louis Vuitton and Hermès at this upscale resale shop specializing in current-season fashions and accessories for men and women. We’ve spotted Chanel and P...