Much to my regret I have a lot of battery-powered devices at home. It starts with a simple clock and goes all the way up to my laptop.
The fact that batteries aren’t really the eco-friendliest thing in the world is not news. So you can do alot to ensure, even though you may be using a lot of battery-powered devices, that you don’t use more than necessary…
My gamepad for instance is a wireless RumblePad 2 (Logitech). I don’t use it that much but the device keeps on draining it’s batteries. Simple solution: Kick the batteries out of the device when you don’t need it.
Also from Logitech: The MX Revolution mouse that I’m using with my laptop. Unfortunately I can’t just remove the batteries from the device but I can at least switch it off completely when I don’t need it.
When I’m at home I’m using my laptop on AC. That means I can safely remove the battery from it. I know many people who don’t do that, mainly because it’s a hassle. If you should ever bother to read the manual you’ll see that removing the battery is indeed the preferred way.
We’re wasting a lot of energy and resources with little crap like that. Maybe think about it a little and count the batteries in your devices. Stack them up and be amazed by the number.