1. I can time the market and make a killing in the stock market!
2. I like expensive and concentrated mutual funds as fees don't matter and speculation pays
3. I will stop contribute to my 401(k) whenever I sense there is a market downturn
4. I will use credit cards when my income is not enough to support my spending
5. I don't bother with tax-advantaged products such as Roth IRA, 529 accounts, and SEP.