Originally Posted by
dulciusexasperis
By the way, 'does not cost nothing', is a double negative and makes no sense whatsoever. Proper English would be 'doesn't (or does not) cost anything', which is not what you actually wanted to say. You meant, 'does have a cost' or 'is not free'.
Fairly certain he meant "does not cost anything" of course. And as for "proper English", double negatives and multiple negatives are a lot more common in speech, other languages, and dialects than you might think. To state that it is not "proper English" is incorrect. Do a bit of research and you will see.