My cels are nearly all in Itoya folders or in my drawer. The small Itoya folders are over the top of my closet between comic book boxes so that they stand more upright:
I have three larger Itoya folders for the larger background cels that are in a zipped art portfolio to keep them out of the light:

Most of my more worthless cels are stacked in my drawer. (I forgot to take a picture of it).
On top of my desk are several dozen sketch sets (and a few cels on top):
...which look like this on closer inspection:

It's stacked so well that I never want to go through this pile looking for a specific set to scan. It would take forever to properly put this stack back together again.
I have some deputy/dealer boxes stacked here:

The bottom big box contains storage boxes I bought a few months ago to put my sketches in.

The long skinny box is the Fate/stay night Sakura figure box.
Another unopened package plus more sketches and that really long Sentimental Journey pan opening cel/douga sketch is sitting on top of the chair:
There's some more cels and sketches here:
What a mess eh?
