Remaining Calm, Even When Blocked By Others
Getting Things Done calls them open loops: unresolved tasks where you're blocked because you are waiting for someone else. Open Loops are a common source of significant, painful stress and worry. Fortunately, the advice in GTD trains us not only to manage these Open Loops, but also to feel downright placid, even when we're waiting for others, and even when they might be a bit unreliable.