I love Target. They have everything from cookies to shoes to sheets at a great price. It's a one stop shop. Make sure to check out the clearance end caps for extra savings.
Don't have one nearby? Don't worry, you can buy many of their items on line. Recently, they had some flannel sheets on sale along with free shipping and a 10% off coupon, so I used their on line ordering to get the items to my house in only two days with regular shipping!