Can you pass the salt?
i do 4 1/2 tbs. of sea salt to a 64oz. container of water which is roughly the salinity of the ocean. i pour it over dry hair. don't rinse. sometimes i'll sit in the sun to dry. seems to help add a bit of rough texture to my soft hair. i do this about once a week usually a day before i wash my hair. i've never had any problems with scalp irritation as some people have but that could be because of my mixture. i used to spray it on but the over spray would get my walls and everything else wet and salty. now i just hang my head over the bath tub and pour it on.
i don't bother adding sea salt to my wash because i've never had it do me any good but that could be because of our hard water.