For some time I've had some banquet table skirting along the base of the layout, below staging. This was a very affordable option, with 14' costing about $20-$25 at Amazon. It is primarily made 28" tall or so, or the height of a table. It can be purchased elsewhere in taller lengths, but for significantly more money.
Because this wasn't tall enough, I added hinged fascias from Masonite, so I could access the top shelf in the storage and this worked well enough. But I've always found getting to stuff below the skirting a bit annoying. I planned on cutting it in strategic places to make it easier, but that would also require some sewing work as well. I covered this in more detail in this post.
I'm not sure why I didn't think of this myself, but Dale told me about a Paul Dolkos article about making removable beadboard sections. Doh! It's brilliant. And simple.
Some masonite, cheap beadboard and moldings, wood glue and spray paint, and voila!