I always scan the clearance racks at Marshall's, TJ Maxx and Ross. I've gotten brands like Avia, Reebok and Everlast from $7.99-$12.99. You don't have to shop off-season. Shop at the tail end of the season, when stores are starting to make room for next season's clothes. Also, do you have a Kohl's in your area? I sometimes find great things there. Danskin tops for as low as $3. Russell tanks for $7. Their store brand, TekGear, isn't bad as well. They're usually on sale for 50% off.
Pinky