Good sense can be defined as the quality which someone has to make sensible decisions about what to do in specific situations. It can also be defined as good judgment. However, in order to have good sense, people have to use common sense knowledge. This is not different to computers. Nowadays, computers are still not able to make sensible decisions and one of the reasons is the fact that they lack common sense. This paper focuses on OMCS-Br, a collaborative project that makes use of web technologies in order to get common sense knowledge from a general public and so use it in computer applications. Here it is presented how people can contribute to give computers the knowledge they need to be able to perform common sense reasoning and, therefore, to make good sense decisions. In this manner, it is hoped that software with more usability can be developed.