First of all, let's start with your tools....and No, this isn't a sales pitch.
A quality blow dryer makes such a huge difference. They are not as scorching and are much more gentle on the hair. Why? How? New technology.
Tourmaline technology, for example, produces negative ions, allowing the hair to absorb moisture during the blow drying process -- leaves hair more conditioned and looking shinier. Anything "ceramic" produces infrared heat, which leaves hair shinier and eliminates frizz.