#23: Old School Calculator
Sure, we all carry around a calculator in our pocket everywhere we go these days, because we all have one on our smartphones. But this person is here to make a case for the old-fashioned calculator. You might be surprised to learn that some people still use them.
The crazy thing is, he’s only had to change the batteries on that thing once – and he’s been using it for 30 years! Talk about a reliable piece of technology.