Xcalday is a very basic calendar for your Windows system, which imitates the functionality of classic wall calendars on paper. In each day there is a box, where you can make notes in the form of a Post-it and so remember important events or appointments you mustn+t miss.It is as easy to use as clicking on a day, and writing what you want. Also, to avoid lapses, the days containing notes are highlighted in red. Xcalday is a very small and completely free application.