To me anyway. Just got back from the GIS and the product that caught my eye was a three part flag that helps you gauge wind....
Rather than a solid flag, there are three ribbons weighted differently. One heavy enough to fly in a 6MPH breeze and up, the second at 12MPH and up, and the third for 12MPH and up. (another version flies at 10/20/30MPH) If you see on flag, its 6MPH, two its 12, etc.
What do you think of that?
On a related note, someone told me today that almost 10% of the public has red or green color blindness, so a flag should be white, yellow, and also patterned.
Does anyone have flag color preferences?