I've discovered the magic of handwritten notes!
It was downright magical. Writing by hand is faster, more comfortable, and facilitates idea development so much more than typing on a computer. There's also a sense of indelibility because I can't erase ink, so any idea I have, no matter how random the idea is or how strangely its written, will remain for me to refer back to later. In fact, writing shorthand like this forces me to remember what the context of the note was so I don't lose any subtext or deeper meaning. I also know that writing by hand helps with memorization.
With this delightful realization, I dug out my (alarmingly high) stock of unused notebooks and journals (a couple were even still in their packaging) and I'm now assigning them to different projects. I even have a graph paper and a dot-grid notebook which I remember wanting to use for architectural plans.