I hope it's not too London-centric of me to say, crikey, it's warm out there. I've conducted a due diligence regional temperature check, and if Edinburgh's nudging the upper 20s, it's probably safe to assume everyone's feeling hot, hot, hot.
I don't know how you feel about heat styling your hair right now, but even my best hair dryer, with the gentlest settings, is not seeing any action. My limp air-dried 'do will do just fine for the most part, but when my social life comes calling, I do want to look a tad more groomed and intentional.