There's one use, though, that you may not think of - and that's to remind you of the Scout Oath. The neckerchief is a triangle, and its' three corners should remind you of something you recently learned - our Scout Oath.
The Oath, you remember, has three corners, too - duty to God and country, duty to others, and duty to self. From now on, every time you put on your neckerchief, it should remind you of the things you pledge each time you repeat the Scout Oath.