We present ARENO, a system that captures reminders handwritten on paper and displays them as ambient information to aid reminding as well as integrating them into desktop tools that manage notes and todo lists. The system is extensible, supporting alternative views of the notes according to user preferences and allowing different views to run in parallel to support different styles of interaction. At the same time, alternative paper interfaces could be used to provide different ways of capturing notes from paper as well as entering them digitally. We report on a study where the system was configured to offer an ambient display alongside two more traditional reminder tools that showed that ambient displays are particularly well suited to notes without specific deadlines.