Your Stuff contains all the content that you have created or interacted with on your Network. From Updates to Files, to Ideas and Papers, down to the Spaces that you have created, everything is neatly collected, organized, and stored within Your Stuff.
Having trouble remembering which space you posted a document to last week? Simply look in your stuff and quickly find and, if needed, interact with that document, directly from Your Stuff.
Your Stuff is generally split between two columns. The first lists the category, followed by a column to preview or interact with the content for a specific category on the left.
If you want a larger viewing window while going through Your Stuff, you may click the left-facing arrow on the top left to minimize the left column, showing icons only in lieu of the full category names.
This is how your Notebook looks like with the left column minimized to show icons only. Note the wider right column with the minimized left column.