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]
Access OpenType Font Features
OpenType fonts (.otf) often have special features, such as swashes and alternate characters, that are accessible in any app that uses the OS X font panel, including Pages and TextEdit. To access them, type and select your text, press Command-T to open the font panel, and then choose Typography from the Actions pop-up menu. That shows the Typography panel, where you can toggle available options for the font and characters you've selected.