I just read Ashley's post but I haven't watched the videos yet.  I will though!  I must admit I use PW edge burn action when I'm looking for a little something extra for a photo.  I love it.  It's so easy to apply and adjust.  I just added it quickly to my second photo here that I had edited earlier this week.
Crop, Nice & Easy, Florida, Florabella Highlight Protection & PW Edge Burn
Nice & Easy, PW Lovely & Ethereal, Highlight Protection & Edge Burn
Florabella ShiShi