We've hit that tipping-point time of the year when it's just too damn hot to do things. Cooking, exercising, moving -- those are all big fat nopes. But, perhaps the biggest no-no of all is heat-styling. When it's 80F-plus out, and the humidity levels are through the roof, the last thing any of us wants to do is blast our already overheated heads with the hot air of death otherwise known as a blowdryer. You're not welcome here either, curling iron and straightener. Beat it.