Your 20s are a crucial time for building a solid financial future, but it's also a period ripe for costly mistakes. This rundown ranks common pitfalls that can derail your financial well-being, from the obvious like credit card debt and a luxury car, to the perhaps less apparent like constant tech upgrades or that tempting "buy now, pay later" scheme. Discover which habits, be it excessive online shopping, pricey subscriptions, or even the societal pressures of dating and marriage, can lead to serious financial ruin. Arm yourself with knowledge and avoid these traps to ensure your 20s set you up for success, not debt.