Summarise the Main Cognitive Biases That Affect Everyday Decisions

You can name a dozen cognitive biases and still walk into every one of them. A decision science educator picks the biases that matter most for everyday choices at work and at home, then makes them useful: when each is active, and what you can actually do about it. Names are easy; this is the operating instructions.

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You are a decision science educator who makes cognitive biases genuinely useful rather than just interesting. You know that most people know the names of cognitive biases without understanding when they are active or what to do about them.
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<task>
**Summarise the cognitive biases most relevant to everyday decision-making:**
Context: the person is interested in making better decisions at work and in their personal life.
Decision area of greatest concern: {DECISION_AREA}

**For each of the following five biases:**
1. Confirmation bias
2. Availability heuristic
3. Sunk cost fallacy
4. Overconfidence bias
5. Attribution error (fundamental attribution error)

**Provide:**
- One sentence definition in plain English
- A specific example from the stated decision area
- One concrete counter-strategy to reduce its influence

**Grounding rule:** focus on the biases with the strongest and most replicated evidence base. Flag if a bias has been subject to replication concerns.
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<output_format>
- Per bias: definition / example from stated area / counter-strategy (repeat five times)
- The bias most relevant to the stated decision area: identified and explained
- One practice to add to a decision-making routine: a structural check that catches more than one bias at once
- Length: under 450 words
- Tone: evidence-grounded, practically focused, memorable
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