I wanted to share this case I found at Hobby Lobby yesterday. It's a nice size for 4x5 holders, including the taller Grafmatics and other larger holders (Linhof, Kinematic, etc.).

Click image for larger version. 

Name:	IMG_20220522_123733.jpg 
Views:	45 
Size:	64.9 KB 
ID:	227465

It's for a die-cut machine (Cricut) but it seems perfect for lining up about 40 film holders, from what I can tell.

Click image for larger version. 

Name:	IMG_20220522_123709.jpg 
Views:	45 
Size:	63.3 KB 
ID:	227466

Available on sale at my local HL for $30.

Click image for larger version. 

Name:	IMG_20220522_123746.jpg 
Views:	44 
Size:	124.9 KB 
ID:	227467

I found an identical design bag on Amazon here, just differing colors:

https://www.amazon.com/Everything-Ma.../dp/B081D9WTHC

A bit more expensive, but if you don't have a HL around, it still seems pretty reasonable if you've got a large # of holders you need to store or take along. I was looking for this to take on a big trip, to carry lots and lots of film. It's got some clear baggy areas on the top as well for accessories, and when fully unzipped packs flat. The sides all are firm and have material to keep them stiff, so it doesn't just crumple.

There is some wasted space on the top but the 4x5 holders fit vertically as well. You could probably put some film boxes on the sides of the vertical stack, or more holders. I also noticed 5x7 holders will fit placed flat instead of sideways. Total internal size is about 8 x 8 x 20.

Anyway, just thought I'd share for those looking for something to carry a lot of holders.