Typically I wash my hair once a week and rinse it once or twice more during the week.  I condition only when I shampoo, but I do oil my hair most nights and some mornings - depending on how dry it feels.

i usually wash my hair once a week. if need be every blue moon i may wash it twice a week. my hair is dry so not washing it as often helps keep it from drying out and beaking. i used to wash my hair everyday, but it was more unhealthy. i use jojoba oil to make up the difference with my length (since its the dryest). however i may just rinse my hair with water only if i feel my hair is more dirty than usual. other than i condition, deep condition and shampoo scalp once a week.