Power Notes is a multi-featured scheduler, reminder, and organizer for Windows allowing you to create electronic stickers and display them when the time is due.
The program is very easy to use and has low system requirements. The scheduler stays in the tray and does not interfere with your activities. If necessary, it can be displayed as a small toolbar on the desktop. All the parameters you may need to change are customizable: a sticker can be of any size, it can have any color scheme (which can be useful, for example, to tell between stickers on different topics) and you can use various skins for stickers.