What tools do you need as a Dynamics CRM Developer?

As a MS Dynamics CRM developer, what you need first and foremost is CRM Software Development Kit (CRM SDK). 

SDK is a toll Microsoft that has an architectural overview of Microsoft Dynamics CRM, the entity model, security model, web services, and sample code.

CRM SDK contains numerous resources, including code samples designed to help you build powerful vertical applications using the Microsoft Dynamics platform. SDK serves as a guide for developers writing solutions, server-side code, client applications and extensions, custom business logic, plug-ins, integration modules, custom workflow modules and more.

You can down CRM SDK as per the CRM version you are working on from this link. Supporting files, sample codes and tools are available of these links;

Microsoft Dynamics CRM SDK &  MSDN Code Gallery

If you are looking for sample programmes developed without  using Microsoft Visual Studio, follow this link https://github.com/dynamicscrm

Some other reliable tools that are used by CRM developers are listed below;

Please share your experiences regarding the above with me and share any worth mentioning tools that I have missed.