Keep track of tasks and appointments, and organise them by multiple tags (see our TaskManagementExample)
Inventory just about anything: your recipes, personal library, contacts, music collection, and more
Create a blog or website
Write a book
Organise your images into galleries (see Icon Gallery)
Share the information in your TiddlyWiki with others, as an online file, as a file attachment, as a tiddler file, or as a link to a specific online tiddler (try clicking and dragging a tiddler from one TiddlyWiki file to another to see what happens)
Draw a sketch (Edit Motovun Jack.jpg and start drawing over the image to see what happens)
Use familiar web user interface elements such as lightboxes - see SampleWizard
Create a slideshow presentation
Set up an entire local or online knowledgebase, with a central TiddlyWiki file linking to other TiddlyWiki files (http://recursos.giffmex.org is a Spanish online example of this)