Calendar vs to-do list
Should I use a calendar or to-do list to plan my day — or both?
Projekt-Plan
Why: You cannot fix a system without knowing where it breaks; most people fail because they over-rely on one tool for the wrong purpose.
How:
- List the last 10 tasks you missed or delayed.
- Identify if they were missed because you forgot them (To-Do list failure) or because you didn't have time (Calendar failure).
- Note which tasks felt 'heavy' or overwhelming due to lack of a clear start time.
Done when: You have a list of 5-10 specific friction points in your current workflow.
Why: Based on David Allen’s GTD (Getting Things Done) methodology, the calendar must be a 'sacred' space to prevent system numbing.
How:
- Commit to putting ONLY three things on your calendar: time-specific actions (appointments), day-specific actions (deadlines), and day-specific information.
- Move all 'I should do this today' items that don't have a fixed time to your To-Do list.
- Treat calendar entries as non-negotiable contracts with yourself.
Done when: A written set of rules defining exactly what qualifies for a calendar entry vs. a list item.
Why: A to-do list tells you what to do, but a calendar tells you when you have the capacity to do it.
How:
- Use 'Time Blocking' for deep work sessions (90-120 minutes) where you tackle your most complex tasks.
- Schedule 'Shallow Work' blocks for administrative tasks like emails or quick calls.
- Always include 'Buffer Blocks' (15-30 mins) between major tasks to account for the 'Planning Fallacy' (tasks taking longer than expected).
Done when: You have a template for a typical productive day using time blocks.
Why: Using the right tool for each job reduces cognitive load and prevents 'app-switching' fatigue.
How:
- For the Calendar: Use a standard tool like Google Calendar or Proton Calendar (privacy-focused).
- For the To-Do List: Use Vikunja (Open-Source) or TickTick (Hybrid) which allows for easy drag-and-drop between lists and calendars.
- Set up three core lists: 'Inbox' (Capture), 'Next Actions' (Context-based), and 'Waiting For' (Delegated tasks).
Done when: Both apps are installed, accounts created, and core lists are structured.
Why: A disconnected system leads to double-booking and missed deadlines.
How:
- Enable 2-way sync if using tools like TickTick or Akiflow.
- If using separate tools, use the 'Daily Shutdown Ritual': At the end of each day, look at your To-Do list and 'Time Box' the top 3 tasks into tomorrow's calendar gaps.
- Ensure your calendar view shows your task deadlines as 'All-day events' at the top.
Done when: You can see your tasks and appointments in a single unified view or have a manual process to link them.
Why: New systems require a 'bedding-in' period to move from conscious effort to subconscious habit.
How:
- Morning: Check the Calendar first to see the 'Hard Landscape'.
- Mid-day: Work from the To-Do list during 'Buffer' or 'Shallow' blocks.
- Evening: Perform a 10-minute 'Daily Review' to move unfinished tasks and plan the next day's blocks.
- Resist the urge to change the system during these 14 days; just observe.
Done when: 14 consecutive days of using the hybrid workflow completed.
Why: The Weekly Review is the 'glue' that keeps the system from falling into chaos as life changes.
How:
- Clear your physical and digital inboxes.
- Review the upcoming 2 weeks on your calendar for potential conflicts.
- Update your 'Next Actions' list—delete tasks that are no longer relevant.
- Ask: 'Did I over-schedule my calendar this week?' and adjust block sizes accordingly.
Done when: Completion of a full system sweep and a clean plan for the following week.
Why: Most people underestimate task duration by 50%; data-driven adjustments prevent future burnout.
How:
- Compare your 'Planned' blocks vs. 'Actual' time spent during the trial.
- If you consistently ran over, add a 25% 'Time Tax' to all future calendar blocks.
- Identify 'Dead Zones' (times of day where your energy was too low for the assigned tasks) and swap task types (e.g., move Deep Work to mornings).
Done when: Updated calendar templates with realistic time allocations.
Why: Manual entry is a friction point that leads to system abandonment.
How:
- Set up recurring tasks for habits (e.g., 'Submit Expense Report' every Friday at 4 PM).
- Use 'Natural Language Processing' features in your task manager (e.g., typing 'Gym every Mon Wed Fri at 7am' should auto-schedule).
- Link your email to your task manager to turn emails into tasks with one click.
Done when: At least 5 recurring workflows are automated within the system.