The Bellport Outlet Center, off of Sunrise Highway exit 55, in Bellport, is an inexpensive port for many goods. The shining stars of this outlet center are the Vanity Fair outlet store and Milano Pizza, in Phase 2 (north of Sunrise). Phase 1 (south of Sunrise) is home to Nike Outlet and Nautica.
Vanity Fair takes 50% off of the lowest ticket price on their goods. That means you will most likely find pants and jeans for less than $20 and shirts for less than $15.
Milano Pizza is next to Bellport Outlet offices and it's a godsend. The gyro special and their various pizzas are inexpensive and tasty.