First of all, I don't undestand how some can get confused about the words then and than. They are two completely different words! It seems to me that people use then where than should be used, a lot more than the opposite. It's rare to see people use than where then should be used.

In Denmark, we have the words ja and men - ja means yes, men means but. In recent years, a LOT of people start a sentence saying... ja, men... = yes, but... I just don't get it. 10 -20 years ago, you never heard anyone starting a sentence with yes, but, unless they were defending themselves in an argument. Oh well, language deteriorates everywhere in the world. I wonder what people will be saying in another hundred years.