I just started wearing the Performance brand sweat bands ... and now couldn't ride without it. It helps keep me cool in the summers and helps keep the sweat out of my eyes. I see maybe 10 to 20% of the other club riders wearing some type of sweat band.
I do plan on wearing a skull cap under my helmet in the next few weeks to help keep my head and ears warm ... last night it was 57 degrees F at 7pm !!!!!