I read somewhere, years ago, that a great way to keep your plastic shower curtain sparkling is to just put it into your washing machine along with a few bath towels. Been doing this ever since and I'm happy to announce it works puurrrfectly! I just toss in all my wash clothes & hand towels along with some hot water, bleach and BAKING SODA...and of course the shower curtain/liner. Make sure you don't wash a whole bunch of towels in that load of course because you want the shower curtain to have lots of room to swish around in...just a couple of towels will do, the terry cloth fabric acts as a scrubber on the plastic...I like using the smaller wash cloth sizes or even my kitchen dishtowels work great!...but I have been known to just add in a couple of big bath towels. When the wash is done, I just take and hang the curtain back up and it drips dry...or sometimes I'll place a fan in the bathroom to help it dry off faster.