Use pretty much whatever you want. They're just titles. The core of course provides some particular "path prefixes" that you might want to avoid, for your sake.
Also, you may want to use some "alphabetically early" character after the $:/ prefix to ensure they end up at the top of the listing. For example "$:/_" or "$:/." <:-) -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/c4c52e47-f5bd-4a9e-95b4-a077aa8d1b9a%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.

