Here are three common mistakes in finance that can make you look dumb:

1. Not having a budget: Not having a budget is a common mistake that can make you look financially irresponsible. A budget helps you plan your spending and ensures you are not spending more than you can afford.
2. Ignoring your credit score: Your credit score is an important indicator of your creditworthiness and financial responsibility. Ignoring your credit score can lead to missed opportunities for loans, credit cards, and other financial products.
3. Not saving for emergencies: Not having an emergency fund can leave you vulnerable to unexpected expenses or income loss. Without savings to fall back on, you may be forced to rely on high-interest debt or make other financial sacrifices. Having an emergency fund in place can help you weather financial storms and avoid unnecessary stress.