Ok, maybe you don't want to wear one around your neck in August, but TextileMonster at Etsy is having a Free Shipping day. Remember, you can always put a scarf on your purse or around your head (which is a great way to hide the fact that you might need a haircut or a hair color refresh).
The scarves labelled "Neck Tissues" are a great length for head wraps. Necklace scarves are an "eternity scarf" shape and are wonderful if you like a very loose scarf effect. For most of the year in the desert, it is just too warm to have a scarf very close to one's neck, and these are a wonderful option. They are shown doubled in the photos, but they don't have to be worn that way.
Some of my favorites: