However, there are some files I take care in storing in the cup, especially since I use them as often as the inexpensive ones. Since I want them to last and work well for years to come, I store my expensive really good files in the pouches they came in. I also keep some of my better shorter needle files a divided pouch I saved when I threw some old files out. These files are easily accessible and not in danger of getting dinged/damaged by the files out in the open.
If I had drawers for storing files, or a larger work surface to space out my files, I would not be storing my files this way. However, we all have to work with what we have and this works for me.