I just wanted to point out that 100 years ago last Monday, Lord Baden-Powell, the founder of Boy Scouts, felt that the bandanna was so useful that he made it a standard - and very noticeable - part of the Boy Scout uniform - the Boy Scout neckerchief.
Over the years the Boy Scout neckerchief's design has devolved from a large square multi-use piece of cloth to a small triangular limited-use wisp of fabric. Some troops are trying to bring back the original neckerchief. I'm trying to talk my son's Scoutmaster and the youth leaders into doing that in their troop.
Neckerchief Uses First Aid uses