It would be nice if someone developed a program that scans for any available Wi-Fi Networks and connects to the strongest one that is available from the list of ones that the user connected to before/after using the program.
It would be nice if someone could make a program that shows the battery life of connected Bluetooth devices like how https://github.com/MUedsa/BluetoothLEBatteryMonitor does so (but made in Delphi/C++ and able to show the battery life of Bluetooth devices along with Bluetooth Low Energy devices).
It would be nice if someone made a program that has a list of output audio devices that were recently used by the OS and let the user select one to use as default when it is connected until it is disconnected, which then will have it use the previous used one as default, then repeat that process when the selected one is connected again.