Product marketers often manage a budget — either directly or through other groups — for direct mail, print advertising, mass media, channel programs, collateral, events, and other marketing activities. Here, marketing consultant Guy R. Powell of DemandROMI explains the importance of targeted marketing spending and provides a Microsoft Office Excel 2003 template that can help you prepare your marketing budget. Evaluate your return on marketing investment for six areas: marketing to existing customers, up-selling to existing customers, "rescuing" customers (preventing customer churn), winning new customers, branding, and marketing infrastructure.