I've been to a number of the Mills malls, Potomac, Sawgrass near Fort Lauderdale, Franklin Mills near Philly and Concord Mills near Charlotte. They seem to have started as outlet malls, but have morphed into regular malls. You definitely need good shoes to visit those places, though.
Potomac Mills was the first place I saw a Books-A-Million. I also love the Five Below store.
We have a Tanger here in Charleston and it's only about 1.5 hours to Myrtle beach where there are two more. Unfortunately, there aren't as many book stores as there used to be.