From http://blog.123ship.it : Do you remember the time when you built your first apps? You were probably the one-man-army, responsible for the whole idea, development, design and copywriting. Stumbling the web to find best templates or designs to reuse, learning basics of UX and photoshop - just like an adventure. Those were the days.
Clipping is a handy way to collect important slides you want to go back to later.