Being a bear of unbearable consistency, I save edited picture files with a description following the original camera-assigned sequence number:
IMG_20181108_190041 - Kindle Fire Picture Frame - Another Test Image.jpg
Yup, spaces and all.
I store my general-interest pix chronologically by year, in subdirectories for interesting categories, so copying all the edited (a.k.a. “interesting”) pictures to the Kindle Fire becomes a one-liner:
cd /mnt/bulkdata/Cameras find 20?? -iname \*\ \*jpg -print0 | xargs -0 cp --parents -t /mnt/part/Pictures
--parents parameter tells
cp to recreate the directory structure holding the picture in the target directory, thereby keeping the pix neatly sorted in their places, rather than creating one heap o’ pictures.
Come to find out I’ve edited slightly over 7 k general-interest pictures in the eighteen years I’ve been using digital cameras, of maybe 27 k total pictures. Call it a 25% hit ratio; obviously I’m not nearly fussy enough.
Then there’s another 16 k project-related pictures, of which 10 k were edited into something useful. With an emphasis on utility, rather than aesthetics, a 60% hit ratio seems OK.
Which works out to half a dozen pictures a day, every day, for eighteen years. I loves me some good digital camera action!