Target and Kohls.
Now that I'm not working most of mine comes from JC Penny or Kmart.
Before it was Macy or Belks. This was long before Kohl or Target.
I buy a lot of clothes from H&M and Pac Sun. I also like American Eagle, Hollister, and Macy's. I also sometimes buy clothes from Target.
Most of mine are from Walmart and some from Kmart.
Amazon, Zullily, and K-Mart.
Target, Walmart and Boscov's, all online. I rarely visit a brick and mortar store.
Nordstroms and Mr.Porter these days.
I get most of them from Walmart. I also get them online from Cabelas and L.L. Bean.
Prefer Amazon Europe since I moved to UK, mostly because of wide clothes assortment and fast shipping. Just have to say that online shopping requires a lot of experience sometimes, as the prices for the same item can differ crazily (here is an example) , but still it is rather time and money saving.
I don't know why, but it always turns out that I always buy the most T-shirts and my closet is just filled with them. I just constantly buy different cool T-shirts with prints on the website by this URL. I recommend you to go there too, it seems to me that you will also be able to find something interesting for yourself. At least, as I said above, I bought a lot of things there.