Notsu 3x5 Dot Grid Cards and my #HipsterPDA https://briangreen.net/notsu_cards
I hate binder clips, they snag on things, but I love these silicone bands.
Perfect for a stack of index cards.
I'm also a big fan of things along the lines of a Levenger "pocket briefcase". I have several, but my EDC is a Crane version I picked up in Ginza that's got very stiff backing.
I used to have a Levenger one the size of business cards, but I lost it and they don't make it any more.
I wish I could find one of these for the ISO A7 — 3" by 4", more or less — cards that I use, just to be difficult. I've toyed with hiring a leatherworker to make me one, it can't be TOO hard.
@mcfate I have a Levenger one for the standard 3x5 cards as well as a few less expensive knockoffs. Agreed on the binder clips, but I'm making it work. I bet you could get someone on #Etsy to make you an A7 leather one for a fair price. I've been hunting the best cards and these Notsu ones are legit.