I have one of the black toolboxes on wheels with the yellow pullout tray . From the home improvement store. Great to take to quilting and have everthing with me.
I also use safety pins when i have lots of blocks for a quilt -pin 10 blocks together. Then when you go to count your blocks you can pick-up 1 saftey pinned stack and know that is ten. Helps a lot if you have 100 blocks in a quilt.
I always make a copy of my pattern so I can write on it -like what color and any other changes I may make in the color placement - without writting on my organial pattern. Then keep the copy with my project until I am finished with my quilt.