How do I move Sticky Notes content to another computer

All notes are stored in one file:

%AppData%\Microsoft\Sticky Notes\StickyNotes.snt  

or possibly

%AppData%\Roaming\Microsoft\Sticky Notes\StickyNotes.snt

Note that this isn't a text file, and it contains both current notes and vestiges of old notes; i.e. it's not exactly useful for sharing stuff.

AppData\Roaming\Microsoft\Sticky Notes\stickynotes.snt

At least in Win 7, you must run Sticky Notes first to create the directory and file. Note that AppData is a hidden directory.

Copy and paste the file, and the next time you run Sticky Notes your old notes will appear.