Keeping track of single actions
Sometimes you need to do something that doesn't really fit into a project. "Make rosemary lemonade" or "Buy a new cowboy hat", for example, probably don't contribute to the completion of any particular project. To keep track of such actions, you can use single-action lists.
To create a single-action list:
First, make sure you're in planning mode. Click the mode switcher in the toolbar 
, or choose Planning from the View menu.
, or choose Planning from the View menu. Choose Add Single-Action List from the File menu or from the action menu 
below the sidebar.
below the sidebar. Enter a name for your new list, and drag it to wherever you'd like to keep it.
You can keep any number of single-action lists; some people like to make one for each top-level folder in their library. Others make a "Reading" list, a "Shopping" list, and so on. Single-action lists are similar to projects; you can drag them into folders, add actions to them from the Inbox, and so on. They are different in a couple of ways, though:
Single-action lists are always parallel; the actions in them don't block each other from becoming available.
All single actions count as "next actions", since each one is kind of a little tiny project in itself.
Single actions appear in a unique style—blue text by default.