As scientists, our everyday tasks involve creating small notes, assembling a short report, a manuscript or even a book chapter, sketching illustrative diagrams, organizing numbers or other items in spreadsheets.Today, all of us, researchers depend more or less on computer programs to solve these tasks quickly and easily. These pieces of software called office suites that provide a huge set of tools to aid most of our documentation needs but they are expensive and not available on every major operating system. What if we want a professional solution that contains all of these tools but does not cost a penny and works equally well on a PC, a Mac or even Linux?No problem since such an application does exist! It was called OpenOffice.org a year ago but today most of its developers (more than 600 individuals from around the globe) work on its descendant, a more popular productivity suite named LibreOffice. It is now a mature software that has been developed for more than 10 years to give you a comprehensive solution for most of your documentation needs.