Finding out what works best for you is a lot of trial and error. I apply products to soaking wet hair. Made a mistake this week and wrapped my hair in my Curlease towel (to dress and apply make up) before applying my jelly product. I didn't rewet--and my hair came out with a lot more frizz then usual.
The order I use is leave in, curl enhancer and jelly product. That's not to say that the leave in and jelly product aren't curl enhancing--it's just a matter of semantics.