To estimate stories in an agile project, the use of relative sizing as absolute sizing is a method that is prone to errors and will vary depending on the developers estimating and their skill sets. This article explains how to use relative sizing using...
This article by MK, addresses the issue of how to plan your agile software project using MS Excel. A good PM does not need complicated or expensive Project Management Planning tools to plan effectively.
This article outlines the estimation process in an agile project. It explains how to capture stories, estimate with very little information - yet be accurate. Applying science to capture good estimates results in good estimation.