Useful Software:

All these are Free / Open Source software.

• WinSCP: Free SFTP, FTP and SCP client for Windows
• Notepad++: Free source code editor and Notepad replacement that supports several languages.
• WinMerge: An Open Source differencing and merging tool for Windows.
• PrimoPDF: Free PDF Creator.

Useful Browser Plugin / Add-on:

• FireBug: Web Development Tool for Firefox
• Yahoo! YSlow: Analyze performance of webpages
• FireFTP: A free, secure, cross-platform FTP client for Mozilla Firefox which provides easy and intuitive access to FTP servers.
• Internet Explorer Developer Toolbar: Provides a variety of tools for quickly creating, understanding, and troubleshooting Web pages.

Keyboard shortcuts:

These are helpful for fast and ease of use.

• Windows
• Microsoft Office 2010
  • Word
  • Excel
  • PowerPoint
  • Outlook
• Microsoft Office 2007
  • Word
  • Excel
  • PowerPoint
  • Outlook
• Microsoft Project 2010
• Microsoft Visio 2010
• Adobe Photoshop
  • CS4
  • CS3
  • CS
  • 7
• Internet Explorer 8
• Mozilla Firefox
• Google Chrome

Disclaimer:
I do not endorse any / all of the above mentioned Software, Plugin and/or Add-on.