Mashable: Texthog
Quick Pitch: Texthog is a super simple service to track your budgets and expenses online. We believe that the easiest way to keep track of what you spend, is to record it in real-time.
Genius Idea: Texthog is a smart finance-tracking system – you send it your financial transactions (via email or text) and it parses that information, tracks it, and categorizes it. The premise is that, by tracking expenses as they happen, you will better be able to understand what you’re spending your money on, where your money has has gone, and how to adjust your budget. This also eliminates the pain of tracking receipts.