Not a lot to do, really? I'm 2 hrs from Charleston and I would say there's a lot to do. There are sooo many restaurants, museums, shopping, historical homes, old cemeteries, Fort Sumter, Patriots Pointe, sooooo much to see. Yeah it's not as fast paced as NYC or LA but enh that's why I like it.
Yeah the traffic is stupid there. I highly recommend just find a parking garage and do a walking tour.