Sharpen using the "High Pass" filter
This was one of those AAAhhhhhh moments for me, when I did it the first time. I hope you will feel the same. It works on Portraits. (but may be too harsh) It is Fantastic to use on flowers!
Make a duplicate copy of your image. Ctrl J
Highlight your new layer.
Go to Filter, Other, High Pass.
Yes, it will turn gray. If it is a high resolution image I would go around 8 or 9.
Now here comes the fun part.
Change your blend mode to soft light or hard light. WOW!!
Try both and see which one works the best with your image.
If you find the sharpening to be to severe, lower the opacity of the high pass layer.
I would love to hear some feedback if you give this a try...
Happy Weekend Everyone!