When you go to the Beach and lie down your blanket, sometimes they try to blow away if the wind allows. What are some ways of making the blanket stay down as simply sitting stuff on the corner of the blanket does not always work and they are not protected from sand.
Note: I know you can use pins to hold the blanket in place, but doing this may damage the blanket and may not work in all settings, such as sand and other loose ground particles.