I started to play Path of Exile and really enjoy it. I played some games of this kind before so I know the concept. I know that Path of Exile as a level cap of 100. However it is kind of long to reach as I can on the official forum and official game FAQ.
I want to know where I should stop "grinding" experience doing with the stuff I picked up on the ground because I know I'll use something else later and start focusing on having a good gear and maybe use the crafting materials I kept all the way through the dificulties.
For exemple; In diablo 2 when you were between levels 80 and 85 it was a good time to stop grinding and start gearing up.
I'm open to any Math-based or non-math-based answers as well as any experiments you can do!