Plan your day around your energy

Turns a messy to-do list and fixed meetings into a realistic time-blocked day, with hard work matched to your best hours.

Prompt, 3 blanks to fill
Plan my day.

Tasks (with rough time estimates if I know them): {{TASKS}}
Fixed commitments: {{CALENDAR}}
When I have most and least energy: {{ENERGY}}

Rules:
- Put the hardest, most important task in my highest-energy block.
- Batch small tasks (email, admin) together.
- Add buffers: assume tasks take 1.5x my estimates.
- Leave at least one 15-minute break every 2 hours.
- If everything does not fit, list what to move to another day and why.

Output a timed schedule, then the "not today" list.

Example output

08:30 to 10:00 Write proposal (deep work, phone away) 10:00 to 10:30 Team stand-up 10:30 to 11:00 Email batch 13:30 to 14:00 Admin: invoices Not today: redesign brief (moved to Thursday)

How to use

Run it first thing in the morning or the evening before. If the day goes off track at lunch, paste what is left and ask for a re-plan.

Why it works

Matching task difficulty to energy is more useful than ordering tasks by deadline alone. The 1.5x buffer corrects the planning fallacy, which is why most daily plans fall apart by noon.

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Promptlexity is a free library of 96 AI prompts and 8 downloadable AI skills across 8 categories, plus a glossary of 64 AI and prompting terms. Each prompt shows the exact text to paste, the variables to fill in, an example of what comes back, and why it works. Each glossary term has a plain-English definition, an example and a common mistake. 6 step-by-step guides cover the basics. No signup, works with ChatGPT, Claude, Gemini and other models.

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