sam's club
on 192 just a lil east of 535 intersection ( this would be the closest to the Fountains which was originally Oasis Lakes if not mistaken )
you will also pass a new super
walmart on 535 at polynesian blvd as you travel towards 192 it will be on the right just past the HESS gas station
costco
on orange blossom trail down from the florida mall about 2 or 3 miles
suggest you do a search on both sites sams and costco for store locators which will then give you an address to mapquest