QReminder Short Description:
A very flexible reminder, with it you won't forget about important events.
QReminder Long Description:
QReminder is a small toolbar for your desktop that packs useful tools. It includes a very flexible reminder, a quick access menu, and a notes archive. With it, you won’t forget about important things.
Plus, it is a very light toolbar, so you won’t have to worry about the memory or CPU usage.
You should give QReminder a try, you might not know you need it!