Photo by Álvaro Serrano on Unsplash

Ever felt guilty for charging your phone in someone else’s house? Well, don’t. The annual cost of charging a typical smartphone every single day is 25 cents. Not 25 cents a day, but 25 cents a year.

It’s not too different with your other gizmos. A tablet costs just over a dollar to charge annually, and that’s only if you plug it in every day. With a device like the iPad – which lasts for days without a charge – that number is even smaller. What about your laptop?