All appliance remote controls should contain both permanent batteries (only if really necessary) and built-in photovoltaic cells to recharge the batteries and/or directly power the device. Remote controls should also be shockproof, waterproof and easy to clean. These qualities would prevent virtually all problems anybody could ever have with remote controls.

As many appliances and devices as possible and practical should be designed to be powered by photovoltaic cells so that the environmental scourge of batteries could be minimized.