Put every task on the list. Walk them through five gates, one gate at a time. Each one leaves with a verdict: now, later, or never.
The one outcome that, if it happened this week, would make everything else easier. Every task gets measured against it at the first gate.
A keystone is singular. Pick the one that makes the other easier or unnecessary, and let the second one take its chances at the gates.
One task per line. Nothing gets sorted until everything is on the page.
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Pull from three places. The pieces of your keystone. The next step on every open project. The small nagging things you keep forgetting.
Build your week from the first list. Set the automations and hand-offs in motion today. Review the Parking Lot once a month.