A good name to start out with when buying corsets. Their range of stockings is usually more than you will see at most stores. Also, they carry fun fetishy-uniforms such as black and white maid's outfits. I have found the best prices on shoes at my local store Electrique Boutique. Sometimes dressing the best is being at the right place at the right time.
Most sales are about circumstance.
Hot Topic is great for sales. For latex lovers, House of Whacks offers monthly specials on their website. This winter leather is all the rage. Rampage , a trendy clothing store had a great deal of nice leather. Ross Dress for Less, as many might already know is the secret place to pick up some pieces.