This list is a summary of tools I’ve used in the past year, for work or personal use.  

ASP.NET / C# / JavaScript

Visual Studio 2010 Visual Studio 2015
Linqpad StyleCop
Bootstrap 2.x Bootstrap 3
AjaxControlToolkit JQuery
AngularJS SlickGrid
Notepad++ Brackets
Chrome Firefox ESR

SQL Server / Data / Reporting

SQL Server Management Studio SQL Server 2008 R2
SQL Server 2014 SQL Server Maintenance Solution
SQL Server Integration Services SQL Server Reporting Services
SQL Server Analysis Services Visual Studio 2010 (BIDS)
Visual Studio 2013 (SSDT) SQL Server Profiler

Design / Planning

Balsamiq Mockups Microsoft Visio 2013
Paint Snipping Tool
Google Docs Excel 2013
Fogbugz (wiki) Planning Poker

Source Control / ALM

TortoiseHg Fogbugz
Kiln Github

Communication

Microsoft Outlook 2013 Google Docs
Google Hangouts HipChat
Skype join.me

Platforms

Windows 7 Windows 8.1
Server 2008 R2 Server 2012 R2
Microsoft Azure Hyper-V (Windows 8.1)
VirtualBox

Utilities

Powershell WinMerge
grepWin ProcessXP
ProcMon Fiddler
WinDirStat Firebug