Let's see... I have a lot of different stores, depending on my mood.
For groceries & pet care items, I have to shop at United Supermarkets! They are cheaper than Walmart most days on regular items not just sale items!
For clothes, usually Hot Topic. But then again, we are a crazy family. Hubby loves to wear Tripp pants & metal band t-shirts, even for work.
Electronics, I like to get at Best Buy. I haven't had any problems with things bought there, compared to the stuff we've gotten at Walmart. It always breaks!
Personal hygiene I usually get at Walgreens. They almost always have something good on sale that after coupon will be nearly free or free.
Toys & books I usually order from Amazon. I get a lot of Amazon gift cards so that's what I usually spend them on. LOL
That's all I can think of right now. Nearly all of my purchases fall into those categories.