Cool site: alice.com

Alice.com is a great site for buying household essentials. Shipping is free, and the prices are generally the same or cheaper than what you find at the store. The layout is simple, and you can refine searches by price, etc. Also, there are a lot of coupons sprinkled in. The only caveats are a little tax on each order, and you have to get 6+ items on each order (but not the first time you use it).