As Bjarne Stroustrup stated in his opening address at CppCon 2015, "we need tools". But what can those tools actually do? What's the point of having an IDE when we have Notepad, VIM/Emacs, Sublime and others? This talk attempts to answer the question by showing how tools allow us to gain more insight into how the code is going to behave and how it can be improved. We'll take a look at a scenario which is made progressively better through the use of code generation, refactorings as well as the insights provided by fast navigation and hierarchical visualization. We'll also take a look at extraneous facilities, such as the support for CMake, built-in unit testing as well as the ways in which interoperation with other tools (e.g., Cling), as well as different programming languages (e.g., Python), makes an IDE an excellent choice for productive development.