Love it or Leave it? Carbine Hook Fan Copter

What's your solution to keeping cool on a hot day? Do you drink lots of water, stay in the shade, or maybe you use one of these carbine hook fans? I don't know what your fashion sense is, but when I saw these fans on 7Gadgets my initial reaction was eek! Even though they come in a variety of colors and conveniently clip on a belt loop, I can't imagine having one of these fans dangling from my shorts. Although I'd definitely consider keeping one in my bag to pull out during a sweatstache emergency! What are your thoughts?