InDesign's Glyphs panel (Window > Type & Tables > Glyphs) is indespensible for locating and inserting foreign-language characters, alternate characters, symbols and dingbats. Yesterday I noticed a strange thing about the display order of the Glyphs in the panel. The default sort order is to sort the Glyphs by their Unicode value. Here's what the Glyphs panel looks like for Adobe Caslon Pro Regular, sorted by Unicode value. (Click the graphic to enlarge.)
Note that the various ornaments in the typeface are scattered throughout the panel, making them difficult to locate. But if you choose Sort Glyphs > By CID / GID from the Glyphs panel menu in the upper right corner of the panel, the panel changes to look like this:
This view may be more useful for some fonts. Depending on the typeface you are using, and what you are trying to do, one sort order may be better than the other. Give it a try!
By the way, Illustrator also has a Glyphs panel (Window > Type > Glyphs). But the Glyphs panel in Illustrator is always sorted by CID/GID and cannot be sorted any other way. Also, both InDesign and Illustrator allow you to choose a subset of glyphs using the "Show" drop down menu in the upper-left corner to display just the currency or symbols for example.