1. Purge and clean out everything. Bring everything out in the open, especially things hidden in the very back that you probably haven’t seen in a while. Purge everything that you don’t need.
2. The point of organizing your closet is to improve the function and everything easy to obtain. Once everything is in a pile, you can determine whether or not it needs a container and what type. Larger items probably won’t need one. Think about aesthetics when picking out the boxes. Make sure you enjoy how they look.