Willy's Freeware Agenda

Willys Freeware Agenda has a simple and intuitive user interface and offers small but useful features.
On start-up the left pane displays today or the next available date. The following day is displayed in the right pane.
You can insert a new date or edit one in either pane. The program doesnt allow you to insert a new record with an already existing date.
If you try to insert a new record with - or change a records date to - a date for which a record already exists, the program beeps and the latter is displayed in the other pane. When you want to replace that record, just re-issue the command.