Had a goofy idea for a stainless steel, embossed business card. You’d only ever need one because you never give it away. Instead, you put a piece of paper on top of it and make a rubbing. Not as quick as trading paper cards but it’d probably be more memorable. Also solves the “problem” of running out of cards and having to write out your details. There are companies that will make stainless steel cards, but they still want to sell them in bulk (and they’re like $2 each!). And then I remembered that I haven’t traded business cards with anyone in 5 years.