I am always on the lookout for travel gear and on a recent visit to a family member with small children, I found some good stuff.
Diaper Wet Dry Bags are meant for transporting soiled diapers, but I am going to use one as a travel bag for my swimsuit.
Pacifier pouch works as well as the pricy Matador Soap Bar Case. I can store a damp shampoo bar in it and the bar will dry out after a few hours.
Muslin Swaddle Blankets are soft and absorbent plus they pack down small making them a perfect travel towel. And some are pretty enough to use as a scarf. As a side note, my niece uses them to dry her hair. It is a hack that she discovered for maintaining curly hair.