Cherry Picker - apply "natural markers", made up as you type, to mark out segments ("cherries") in one or several tiddler texts. Call the cherrypicker macro to get the cherries extracted and presented as a list.
Recent tab with transclusion - Do you want your own personal Twitter-like feed in TiddlyWiki, so you can post your nuggets of wisdom, upload them, and let your users see a running list of them, sorted by most recent?
Streams is a keyboard friendly way to write and easily divide your text into separate tiddlers while writing. Every time you want a new tiddler, just hit Enter. A new tiddler is created in the background and you can just continue writing.