I have one better - a box, about 2 ft^3 in volume, of the negatives for every photograph my wife's grandmother took throughout her life. She kept them all in one box, moved with them several times, and only stopped when we got her a digital camera in ~2010. Even then, she didn't like the idea of re-using memory cards, so we just bought small ones in bulk. There were ~100 memory cards in the aforementioned box when I received it; I've since copied them all over to my "family long-term digital storage", which exists in multiple places and in multiple formats. In addition to that, I put them all on USB drives and distributed them to interested family members at a family reunion. Each year they get new thumb drives with whatever new data I've collected over the preceding year.

My problem is that I have thousands of negatives and slides, in several formats, and no easy to way scan them in bulk. While there are services out there that do it, all of the ones I've found in the past are both expensive (on the order of ~$0.25-$0.50 per image) and limited in the formats they support. Most only do 35mm negatives and maybe slides. I have 35mm, APS-C, 110, 120, 220, and even a bunch of 2.25" square negatives that I believe are from a Kodak Brownie.

I've not found any service that's truly as simple as "send them a box of negatives, get back a link to an S3 bucket with your photos" - and certainly none that are capable of supporting such a wide variety of formats.

To this point, I've just been spending a Saturday afternoon here and there scanning them individually, manually, on an old (but good quality) flatbed scanner. I 3D printed some negative holders and hacked together a Python script that looks for the "crop marks" on the holders, crops, straightens them, and drops them into a folder. There's a sidecar plaintext file in that folder that describes the envelope they were in and includes anything that was written on it. There's also an image named "front.jpg" and one named "back.jpg" in each folder that is a simple scan of the envelope. All of the scanned photos are kept in lossless TIFF, which is... unwieldy. At some point I'll probably pick a format with better (lossless) compression for the "originals" and move to that.