I love my "world's thinnest wallet" made of thin ripstop nylon. Two companies make them. I bought the one that doesn't have that company's logo on the front. Cost $15. Cheap. The two card pockets oppose each other along the wallet's folding crease, which prevents the from falling out. Most wallet have the card pockets facing up and out of the wallet. Poor design. This wallet is so much thinner and lighter than my previous nylon wallet (EMS brand) that it almost gets post in my pocket. Amazing. FYI, I carry 8-10 cards - 4 or 5 in each card pocket. There's also a long pocket for paper money. I don't like money clips. Also, I wanted to post on your Gel article, but couldn't find a comment box. I made a Facebook group for fans of the Pilot Varsity "disposable" fountain pen. There are now over 200 members, worldwide. For the record, this one CAN be refilled, and several YouTube videos show how it's done. Easy. I recommend Noodlers brand bottled ink. See their website. Thanks. I'd love to hear from you, but know you're busy. Thanks for all your hard work. - Anton Ninno, retired teacher (but still teaching fulltime!) in Suracuse, NY. Here's my FB Pilot Varsity fountain pen group link - https://m.facebook.com/groups/197623255226/