That buff looks well good :) It's so versatile! Would need more time to choose one and can't find a plain pink one ;) like at SweatyBetty (didn't know you had one lili!).
Am going to treat myself to a headband I think - the next half stone loss!
I use a baseball cap and tuck it all in except the pony tail at the back, however, on longer runs it makes my head too perspiring (sweaty?!).