Not the most designy bathroom product out there, but definitely one that will cut down on your use-and-toss impact on the world. To avoid the endless shower curtain liner cycle, one option rests in this hemp shower curtain from local company Bean Products. From the site:
Hand-crafted here in the USA of extremely strong, durable and beautiful Romanian hemp fabric. The curtain will stop water from spraying outside your shower without a plastic liner. This keeps unnatural plastics out of our landfills...
The shower curtain will get wet, but will not leak through. The hemp shower curtain will rapidly air dry which helps prevents mold growth associated with plastic liners.
Our hemp shower curtain has a natural resistance to mildew and bacteria, and can be machine washed to clean any grime buildup. After machine washing simply hang the curtain up to dry, any wrinkles will disappear during showering. You may find it necessary to use a natural mildew preventative from time to time depending upon climate and your shower's natural ventilation.
Another idea if you don't like the look of hemp fabric (or the color): use this curtain as your "liner" for your favorite shower curtain (like the white waffle weave one we love so dearly).
The hemp shower curtain is available for $99 from Bean Products.