I gotta admit, I love that squeaky clean feeling! I know that my hair is healthier when I don't shampoo and it still feels clean, I just like the feeling after I've shampooed.
Some more simple ideas, roses_ashes - Never brush curly hair! Never. Don't towel dry hair (creates frizz). If you want to dry your hair with a towel, get a microfiber one (less frizz) and gently scrunch or pat your hair, no rubbing. When you're in the shower, don't pile your hair on top of your head, because this messes up the curl pattern. If you must comb, use a wide-toothed one, but only comb in the shower or when you're applying product. Once you've applied product, don't touch!! I used to always want to keep scrunching my hair, but this just encourages frizz. If you don't want to air dry, use a diffuser. I like the bowl diffuser better than a sock kind. A great diffusing method is here, thanks to PixieCurl:
That's all that I can think of at the moment, but I'm sure there's more. Curly hair is darn complicated!!