Do you want to make screenshots almost seamless, then PicPick is for you! The software allows to take screenshots on the fly with hot keys. It basically eliminates the need to open Microsoft Paint and paste and save  the file names if  you have multiple shots.

When taking multiple screenshots, the software will tab up the various shots for later, to save or dispose of them.  The software is free, but there is a paid version if you want more accurate!