how many film holders do you have?

For me, the holders have become a collection in itself....have so many mostly of British and German make and mostly double book holders.
You find an overview of the British ones in my collection right here: https://www.photrio.com/forum/threads/wooden-book-form-plate-holders.171222/

I have a bunch. I mostly use the 5 Grafmatics and the 20 or so Toyo. I have a bunch of older ones too like Rtieway and Fidelity. I don't really shoot that much 4x5 anymore so one or two Grafmatics does the job.

If you run out then get some more. Just be thankful you aren't a commercial shooter back in the day. I knew guys that had hundreds of holders.

Like dust bunnies, they are everywhere. Clean them up and more appear.

I thought I had about ten 4x5s, but the number appears to be more like 15 -- I think somebody gave me some along the way. Considering in the last two decades I've only used large format for pinhole work, I probably have at least three times as many as I need. I also own five 8x10 holders, much more recently acquired, to use for pinhole. On some of those I had to do repairs on the hinges with bookbinder's tape, but they get the job done (and cost me about a fifth of a new one).

42 4x5, 16 5x7 and 10 8x10 holders. Also have about 20 9x12 holders.

Probably too many, if that’s possible. 53 4x5 and 26 8x10. 5 2x3 graphmatics and 25 2x3 filmholders. And 3 2x3 placeholders.

A friend gave me a large box of 4x5’s. They are held in reserve for the 10 or so I use. Plenty others in the other formats.

I have 6 Grafmatics and would like a few more, I use them probably 80% of the time when I'm out shooting. I have dozens of 4x5 DDS, usually carry a couple with random film I don't want to take 6 frames of - Portra or Velvia usually. I've never had a reason to use them all yet, but planning a big road trip this summer and will load them all up! I've been slowly cycling through them all to make sure they're functional and lightproof, so far so good.

I plenty of holders but now I only do 1 exposure. At this point in my career I can get it with 1 exposure.
so now I get double the amount for my use of holders!!

19 holders... never use more than 10 at a time - that was one time up north in Norway during long daytrips and holders take a lot of space.. Since then I use maybe 3-4 holders (6-8 frames) at a time - and that is after starting to shoot pinhole in 4x5" since spring last year.
During that Norway trip I then moved the exposed sheet to a small 10x15cm photo album which I had stored in a folded black plastic bag inside my darkroom bag.
This turned out real nice and I had reused that solution several times.

Most I've carried in one go is 10 4x5" holders (as many as fit in a US Army GP Ammo bag)

I think I have about double that number lying around, also Grafmatic and Graphic 22 and 23 roll film adapters.

Eight 4x5 Fidelity film holders and one 4x5 Grafmatic, so I can carry 22 sheets without reloading, which is plenty for most trips. I also carry a changing bag just in case.

I usually have the Grafmatic loaded with TMX, and split the Fidelity with 4 Ektar, 2 Portra 400, and 2 Rollei IR unless I have something specific in mind that requires me to shift the numbers around. I've tried lots of other films, but mostly stick to those with the exception of occasionally shooting Velvia 100. TMX is my high detail B&W, Rollei IR doubles as an IR film and higher contrast 400 speed B&W (my Tri-X substitute), Ektar is my preferred color film and Portra 400 is my high speed color film for when I need the extra speed.