iOWEYOU is an innovative expenses sharing system, originally designed for use in a shared student house. The key features are Expenses logging - Log anything you share, from bills to beer. When you pay someone back, log that too. Instant reports - Whenever you need it, you can call up exactly how much you owe, or how much you're owed.
Access anywhere - Log in from any computer, where ever you are. No need to use the same computer with all your housemates. It works in any currency too. And its free for groups of up to five people.