The software development process involves many tools. I routinely use
✔ Visual Studio
✔ TFS and Subversion and git - Yes, its you, the customer, who decides!
✔ WinMerge
✔ Notepad++
✔ MS Excel for code generation and quality control
✔ IIS
✔ SSMS
✔ MSBuild
✔ Powershell