Anyone that knows me knows that I have been addicted to Diet Coke for, Oh, about 25 years.  I have also used artficial sweeteners for forever.
About two months ago I ran out of my sweetener and when we went to the store (WM of course), they were out...for weeks.  So I used sugar.  Then one day, one of my employees got regular Coke by accident, so I traded with her and lied about drinking reg. coke.  It sat there for days and I drank it out of despaeration one day.  I could swear it is the nectar of the gods!
I have now given up the sweeteners, diet coke, and ugghh, margarine.  We only use the real thing now.  Believe it or not, I have lost weight (lost sleep too, but that's another matter)  I only allow myself one coke a day, and I'm very sparing with the sugar.  Butter, is another story.  Butter is awesome on everything!