A few days back, I stumbled into a superb screen capture program called ShareX. You can download it here: http://getsharex.com/. If you are curious with its source code, you can view/contribute at GitHub.
Select actions to do after capture the image:
Change output folder
What I haven’t figure out is how to make ShareX upload to WordPress blog. That would save me a few minutes every time I blog. I shall investigate it in another blog post. 😀
I hope it helps, cheers!