Staple placement is something I take very seriously. I notice that most people will align their staples with either the top or side edge of the stack of papers. I think this practice is highly questionable because it places undue stress on one puncture point when the pages are turned and folded over the corner. To offset this stress, I've always stapled diagonally across the top, thereby diffusing the paper folding across the length of the stape. What has been bothering me, however, is the angle best suited for this purpose. I had originally been stapling on a 45 degree angle, thinking that median degree of a right angle would naturally be how the paper would fold. I've come to notice, however, that this is incorrect. It turns out, the paper folds at more of a 60/30 degree angle depending on which side you are measuring from. Since noticing this, I've corrected my stapling procedure and the results are phenomenal. Perfect folds and very little tearing.
Anyways, I just made some copies and figured I would use the auto-stapling feature on the copier. The freaking thing staples on the same angle I found to be the best! That means that somebody else probably had the same thought process at some point.
In middle school we couldn't use staples. We had to make paper staples, a very intricate process requiring folding, ripping and re-folding. Complicated. Ineffective. Thought I'd introduce you to other forms of holding multiple sheets of paper together.