The "Increment and Save" command in After Effects serves the fundamental need in professional creative work of preserving the various development stages of a job. Cinema 4D and other pro software packages also have this. Photoshop should too.
say you are making a whole series of pictures "famouse_picture 01.jpeg" to "famouse_picture 09.jpeg".
you save the first picture name "famouse_picture 01.jpeg" and then when you are ready to save the next picture you press a plus sign and it'll save it as "famouse_picture 02.jpeg" and so on.
or you simply press shift+control+s and ps will save that layer with its incremental added to the file
No, that's not it. It has nothing to do with the file format. Adobe just needs to write a new menu item with a short new piece of code that can parse the version number on the end, add 1 to it, and save a new file. I honestly don't know why this isn't "standard behavior" across the entire suite.
ah gotcha. I'm thinking more of an incremental file format, not just appending a #. Most modern file formats allow for saving only changes and incrementing those in a type of embedded history.
If Adobe ever implemented the variable filename token I mentioned in the link below, an incremental filename variable would be a great feature for inclusion.