Space saver alert. We just found the Polder Duo Shower Rod at Linens N Things and fell in love. It's a classic, chrome shower curtain rod with a twist: it's a double rod: the inner one for the shower curtain and the outer one for hanging towels.
For those of us with limited wall space in the bathroom, this is a treasure. And it's pulled off without being too bulky or noticeable.
Five feet of extra hanging space for under $40 is not bad, not bad at all.