I just found my 4GB SD card in my hamper (with clean clothes). Not sure if it had just fallen in, or went through the wash. I haven't had a chance to see if it works, but it's nice to know it could have gone through the wash and survived.
They are getting so cheap, it's not a big deal, still I'd rather it work than have to buy a new one.
+T for more good luck (as you apparently just used up some).