There are a thousands of tutorials and tips on retouching and post-production out there, so it’s pretty hard to find new things worth sharing. Here’s one I use on all my photos:

I call it Creative Quarantine. It’s not a fancy technique, but a strict policy: Whenever possible, I do not publish (or otherwise send off) images the same day I retouch them.

All my retouched photos go into quarantine for about 24hrs, usually meaning that I have got a good night’s sleep between looking at the close-to-final image and actually finishing it. What this does for me is giving me some distance, staring at and working on an image in Photoshop for hours doesn’t exactly improve your perception of it. Go to sleep. Eat something. What I noticed is that often I would spot areas that look overdone – lower that opacity a bit. How come I missed that spot yesterday? – heal it out. Uh, that skin softening looks just a little to gaussian – you get the idea.
I suggest you try this the next time you get all excited about that gorgeous photo that you can’t wait to get some feedback on. Don’t rush things.