Now I Want Notecards

Reading this piece by Ryan Holiday makes me want to start keeping notecards instead of putting everything in DEVONthink.

I wish I had some satisfying explanation about why notecards are so powerful, but I don't. I don't know why they are so integral (and yet used in such diverse ways) to so many fascinating people. It's not like we're ever taught how to use them. When I was in school, they spent years teaching us cursive, but not one minute talking to us about notecards. It's not like they’re glamorous or displayed prominently in artsy stores and movies, the way journals are.

My hang up is always, how do I keep track of them all and file them? Of course the quest for the perfect system is futile, but I feel like I don't even know where to start.