Here are five I use weekly, with why each works.

1. Cold email in 90 words — "Write a 90-word cold email to {role} at {company} offering {offer}. Open with a specific observation about their business, one sentence of value, one soft CTA. No buzzwords."

2. Scope-creep shield — "Draft a polite but firm reply to a client asking for unpaid extra work: {situation}"

3. Pre-mortem — "My project {project} failed in 6 months. List 10 likely reasons and a prevention step for each."

4. Resume bullets that land — "Rewrite these resume bullets as action + result + metric. Ask me for missing numbers: {paste}"

5. Universal upgrade (append to any prompt) — "Before answering, list the 3 assumptions you're making, then answer, then suggest one way I could make my request better."

Why these work

• Constraints beat adjectives. "90 words, one CTA" produces better output than "make it professional".

• "Ask me for missing numbers" stops the model from inventing metrics — the #1 failure in resume and sales copy.

• Pre-mortems exploit the model's strength at listing failure modes faster than you can.

• The upgrade prompt surfaces hidden assumptions, so you fix the request instead of re-rolling the answer.

Try it

Take one task you do every week, and rewrite your usual prompt with: task + constraint + "ask me what you need first". Compare outputs.

Disclosure: I made PromptDrop, a pack of 40 prompts in this style plus a freelance invoice tracker ($5, paid in USDC): https://promptdrop-kit.surge.sh. The 5 above are free to use.