Bit of Numerology -- We hit these triple identical digit issues of TidBITS every couple of years, but this is one of the most notable, since 666 is the so-called "number of the beast" from the Bible's Book of Revelation (Chapter 13, verse 18). But the number has additional meaning in the Macintosh world, where $666.66 was the initial price of the Apple I and where the now-relevant Unix command chmod 666 unlocks certain problematic files. It turns out the number has many other mathematical properties, as you can read at Mike Keith's page on the topic. I particularly like the last one. [ACE]
Copy Existing Filename to 'Save As' Field
While many utilities provide file naming automation, they're mostly overkill for those cases when you need to make small variations in file content while ensuring the documents group together in a "by name" list.
In the Save As dialog, the default name is the current document name. You can quickly change this to match any existing file.
1. Make the list of files the active element.
2. Click on a grayed-out filename, which momentarily turns black.
3. The Save As field now contains the filename you just clicked.
You can modify the name (adding, say, "version 3") or overwrite that existing file you clicked.