I actually only apply styling products when my hair is almost or completely dry. If I add products before that point, my fine hair gets weighed down and loses its curl.
Originally Posted by porque_pig
Aha! It's only recently that I figured out that my hair is fine. I just have a LOT of it (apparently yet another trait of 3a hair). Today is the first day that my curls held up ALL day.

I never realised that could be a function of having fine hair, but you hit the nail on the head (for me).
3a/and that one odd straight hair! Medium iii. Low porosity. Likes protein once in a blue moon, but only followed by moisture. Hates glycerin.