I seriously suggest you have an area dedicated to this part of the project. There are several ways to keep track of your 9-patches. I labeled folders with the "P#" and the amount. If you are using different colors then the pattern make sure you use your 'colors' when you label.
I have also used paper plates to keep each section organized, baggies would work too. The "KEY" is to do what works for you.
Of the 6 gals who live body started this, one is on to the 9-patch stage, 3 are still sewing strips, one was a NO SHOW- lol and the other just bought her fabrics last night. (I am not going to admit how far behind I am- lol)
Good news is: You are done with cutting, it is chain sewing from here on out- whooo whooooo!
Disclaimer: Several of my gals are doing yardage of four fabrics (three color and a background) I have the GO cutter and Strip Dies and have helped cut out the strips. I will do a separate post showing how to use yardage. I think we will have some beautiful quilts to show off soon.