THAT'S NICE! ON GQ: WHY MUST I LEAVE THE LAST BUTTON UN-DONE ON MY SUIT?

I constantly get asked this question so for this week I am addressing it over at GQ. 
Fashion doesn't make it easy on men, does it? Take suits. There is so much to consider: colour, pattern, fit... And the jacket! Large lapels, thin lapels, peak lapels, rounded... Single breasted, double breasted... And then buttons, quite the mystery to men, as you can imagine, and yet the easiest to understand. So let's make this one quick and painless...