I search for a simple web-application to manage household buyings and keep track of the costs. A simple Website where I can add my bills and get monthly statistics.
NotreManage looks very promising but its not finish yet.
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Try this: http://www.mint.com
I looked for this myself a while back, and every one I looked at had drawbacks. Finally, I made myself a Google spreadsheet to track and manage my expenses against my budget.
I've created a template for others to copy:
My bank has partnered with Quicken Finance Works and offers that for account information. It can tie directly into your credit card accounts if you have setup online accounts so you can keep track of everything from within Finance Works. Provides charts and graphs showing expenses, trends, and allows you to set monthly goals (budgets). I would highly recommend you visit their site and use the Find A Financial Institution to see if your current bank participates.
I am using money2manage.com to manage all my household finance. Almost 2 years now and it is still perfect and working. Give it a try.