If you haven't received the letter yet or read it all over the web, the IRS has posted a calendar with the potential dates of when you should receive your economic stimulus payment. Don't worry when you receive the letter from the IRS, it clearly has "Economic Stimulus Act of 2008" in red on the front of the letter above your name and address. If you have not yet calculated your potential payout, you can use this detailed calculator from the IRS.
If you filed your taxes and selected the direct deposit option for your refund, you should check the direct deposit section of the calendar. If you did not select the direct deposit option, you
should check the paper check section of the calendar to see when you will receive your check in the mail.
Do you plan to help stimulate the economy? I haven't decided on how I will use my payment but I seriously doubt it will be for a frivolous unplanned purchase.