tbNotes

tbNotes is a minimalist program that helps you remember the important things. Simply set the day, hour and minute, and at that moment a notification will appear on the screen with the text you enter.

tbNotes is free and requires no installation. Just download it, unzip it and run it. Once launched, a small icon will appear in the system tray. Right click on this icon to open the program menu. Here you can add a new reminder, edit or delete existing reminders, or exit the program.