The trap with product prompts is asking for the finished thing. Ask for options instead, then bring your taste to the edit.
Start with the smallest version
Write down what you never want as explicitly as what you do. The exclusions often do more work than the instructions.
- Compare two outputs instead of trusting one
- Keep one ask per prompt — chaining beats cramming
- Name the audience and the single goal before you generate
Keep a negative list
Ask for the reasoning, then the result. When the model shows its steps you can see exactly where to push back.
Lock the parts that never change and leave one slot for the variable. Now every run shares a family resemblance instead of starting from scratch.