Wmbattery displays the status of your laptop's battery in a small icon. This includes if it is plugged in, if the battery is charging, how many minutes of battery life remain, battery life remaining (with both a percentage and a graph), and battery status (high - green, low - yellow, or critical - red).
wmbday is a small dockapp that reminds you of birthdays. It can take an arbitrary number of birthdays, and will display the next four upcoming birthdays. By left-clicking a name, you can see the remaining days until the birthday. The colours of the background and the font can be customised.