Did you find it weird at first writing stuff down again? I did the same thing about a year ago (started with just a cheap spiral notebook from the grocery store) and the first week felt like homework. But what really did it for me was keeping the notebook open on the kitchen counter, so I had to walk past it every night. If I skipped a day, I'd see the empty line staring at me, and that nagging feeling got me to fill it in. The other thing that helped was splitting the page into wants and needs, which made it super clear where the extra money was leaking out.

Paper still wins for me and its not even close. Pulling out a card forces me to actually stop and write the thing down, and that little pause is where the idea gets sharp. Voice notes are too easy, you just mumble something half baked and then you have 214 files you never want to listen to again. Plus searching a recording only works if you remember the right words, and half the time I don't. Glovebox cards never needed a battery either.