How do you say you so much have a good day in french

Hi,

How do you say thank you so much have a good day in French ?
 "Merci beaucoup, passez une bonne journée."

Is this french and is mary melons treatment on the island a book ?

On a daily basis you have the opportunity to read french on products used in the united states look at the list products which is most likely to have french on it :
- hair products