If you're in your 20s, the world may not throw money at you — but you'll get plenty of free financial advice.

For instance, you have been told to save diligently, fully fund your employer's 401(k) plan and avoid credit-card debt. And those are all good suggestions.

But there are other suggestions that aren't quite so good — including these four popular pieces of advice.

1. Amass Cash
2. Buy Big
3. Get A Life
4. Go For Growth

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