https://gettingthingsdone.com/2021/09/the-three-cs-of-effective-systems/?utm_source=rss&utm_medium=rss&utm_campaign=the-three-cs-of-effective-systems David Allen's GTD® Methodology Wed, 01 Sep 2021 15:21:46 +0000 hourly 1 https://wordpress.org/?v=6.9