Personal Budget Spreadsheet on Google Docs

This is something that I came across while browsing, keeping track of ones own expenses is always advised, but I am rarely able to follow that. What if someone gives me ready made tool to track them, just found that on Google Docs. Login to Google Docs, look for template gallery and you can find Personal/Family - Monthly/Yearly different types of budget sheets. They seem to be really useful, of course if I am able to use them :P