Micropayments are already flowing freely on Xbox Live and are becoming increasingly popular in MMO circles. However, Opposable Thumbs points out an unfortunate problem with any micropayment-based system that stores your payment details--it's all too easy to buy things when intoxicated.

Of course, this problem extends beyond the realm of gaming, to websites and even real-world transactions. However, the nature of gaming as an entertainment activity means that perhaps enforced self-controls may help those of us whose wallets get looser with liquid.