[zelphirkalt]

Org-mode! There. I said it. Now this thread has the obligatory post.

[tiou]

Yes, I have been using org-mode for task management for over a decade, enjoying all the advantages of plain text.

[gexla]

Right, any knowledge not in Org-mode is not really knowledge.

[kreyenborgi]

Apart from the funny timestamps (two-digit years ´༎ຶД༎ຶ), his files more or less are in org-mode already :-)