This thread is SO timely. I have curly hair which gets attacked by straighteners all the time. I HAVE to wash it every second day or it's a grease ball.
I decided these school hols I would give my hair a holiday too. I have stretched the washing out to every third day and I only straightened it once (when i was meeting up with someone for the first time and i didn't want to turn up all dishevelled!). It seems to be enjoying the time off. I might keep at it a bit longer.

I actually didn't think it was possible to go up to a week - I am envious of you guys!

ETA: a hairdresser once told me to buy some 'in between washes' product which makes your hair look less greasy. Has anyone seem/tried it?