How long do you wait until washing your hair after dying it?

I usually wash my hair everyday because it gets kinda oily and since I live in a tropical country, we usually sweat and it gets sticky and...ew. Yeah. I have dark, thin hair (but I have A LOT, really) and I wanted to get that California Highlights look so back in January I bleached the ends and applied a dark blonde color... And I looked great, but it lasted just a few days before it started to wash out. Yesterday I dyied my hair again, this time dark brown and I want it to last the most, but I'd really want to take a shower and wash my hair since I'm meeting this guy I kinda like, ha.

So yeah, I'm obviously going to shower, but should I wash my hair today or wait a few more days? And do you have any advice for taking care of colored hair? I'm kinda a newbie here. Thanks!

EDIT

Here's a picture of my hair, if you were wondering http://i.imgur.com/HIgxaZg.jpg