Instead of traditional doodling I do 'write only' note taking and diagramming. This is just to be able to focus. The notes are not meant to be ever consulted as

Instead of traditional doodling I do 'write only' note taking and diagramming. This is just to be able to focus. The notes are not meant to be ever consulted as they are (a) deliberately unstructured so as not to put constraints on the process and (b) a lifetime of keyboard usage has rendered my handwriting undecipherable unless I concentrate 100% on the writing which would defy the purpose.