How can I keep facial sponges mildew free in summer?

oxoned asked:


I have to use an exfoliating sponge (like a Buf-Puf) every couple days, but in the summer they are prone to mildew. I was thinking of trying to soak them in diluted vinegar to kill the germs, but does anybody else have any suggestions? Remember that it will be scrubbed on my skin so it must be nontoxic.

Thanks in advance!