I know that sounds odd, but they are so useful for purposes other than the original intention. The weave is thin enough to breath through and they dry quickly, but they are super absorbent.
I used them to cover DS if the sun was on him, as a side drape to extend the coverage of the stroller hood, as a light blanket, as a burp cloth, as a nursing privacy shield, for cleaning up spills, and for stains and sticky little fingers. I used them to dry DS after a toddle in one of the fountains, to dry off wet benches after a rain, and to cool all of us off when it got hot. They are large enough to wet and tie around your neck if you get overheated, or even to wrap a twisted ankle. They make a good cold compress for a headache as well. Also, if you put a folded one under the top of the mini-cooler it will insulate the area around the zipper and preserve the ice longer.
I'm sure that there are other uses for them, too, that I haven't thought of. They are VERY handy.