actually all of grocery stores and pharmacy stores like CVS, Walgreen carry fish oil as well as those club stores. I prefer shopping in grocery stores and CVS... because it is cheaper than sam's, costco's when they have sales. Moreover, these kinda sales happen a lot. at least once or twice a month. Especially, when there are a lot of such stores around u, the sale actually happens every week.

呵呵，我在www.chinastore.com 买过。

主要是周围没有几个Drug store.