Billy, Rex's is in a brick building that looks more like a ranch house than a store. It's a great place to shoot, being very bright and airy, imho. The pro shopt is also nice.
Take I26 East like you were heading to Spartanburg SC. Make a right turn on to Upward Road (can't miss the exit signs). Travel approximately 1 mile and Rex's will be on the left.
If you miss it the first time, you'll end up at a T-intersection in about a quarter mile, with Ingles directly ahead. No biggie to turn around.
If you're inside H'ville, take 176 towards Saluda, like you were going to grab 25 south into Greenville. When you see the Harris Teeter on your right, you have approximately one more mile before Upward Road and the Ingles.
I think that's right.
Jeff @ On Target, Sweeten Creek Rd, is pretty cool to deal with. The operation is a little darker/drearier than Rex's, but if all you want to do is shoot, it's a good place to do it at.