Purrint is a handy little Windows tool for enhancing your PrintScreen button. I configured it to load at startup and silently save a .png screenshot on every press of PrintScreen (while still copying to clipboard of course).
After using it for a while now, my screenshots folder has become a sort of personal Desktop-log, a handy way to find out what apps I had open/what I was working on on a particular day in the past.
P.S. I agree with huphtur, post screenshots!
I configure it to save the png file on my desktop in order to drag it easily to the messenger : very fluid solution for me to show graphic works in progress. (tip: Alt+PrintScreen prints only the active window).
I ve the same desktop log habit, i post some on my site.