About time

I have lost count of the number of quilts, wall hangings or any other item I've made that require binding. I don't mind any of the processes that will get to the final outcome except one.  For some reason matching the ends of the binding at a perfect 45 degree angle and sewn on the project without any tucks or ripples on the first try has always alluded me until yesterday. When the binding was all sewn on I couldn't tell which seam was the last one sewn. That's way it's suppose to look, right?  The problem is, I don't know what I did to get it right - drat.  I did tell my DH that my new sewing cabinet in my new sewing room was the reason for perfection.