We all have buffs, myself the other half and my son. My son is growing his hair and wears his like a headband to keep it back, my other half is balding and wears it to keep his head warm and i mostly wear mine pirate style or round my neck.

Seconding or thirding the suggestion of soaking them and putting them under your helmet on a scorching day...so so nice. If you have a spare one they make a nice wrist sweatband too. Or in a pinch a bandage...been there done that!