Nintendo has started selling keychains with swappable Hanafuda cards decorated with Super Mario Bros characters in Japan.

Some things are quite obvious, such as your wallet (with cash, credit cards, and identification ... The good news is keychain tools exist, and a lot of them offer more than one function.

Look, I admit I have a problem. Below are just some of the smaller ones that observe from behind my desk, embarrassing me on all work Zoom calls. But how exactly am I supposed to resist adding to ...