Resharper. This is a must. It makes it so easy to navigate, refactor, and run tests.
http://www.jetbrains.com/resharper/
My favorite coverage tool:
http://www.jetbrains.com/dotcover/
My favorite profilers:
http://www.jetbrains.com/profiler/
http://www.eqatec.com/Profiler/
Incredible code translation from VB.NET to C# or C# to VB.NET
http://www.tangiblesoftwaresolutions.com/Product_Details/Instant_VB.html
http://www.tangiblesoftwaresolutions.com/Product_Details/Instant_CSharp.html
Beyond compare works great with subversion and TFS for code merging:
http://www.scootersoftware.com/
If you are using subversion, this tool is a must for Visual Studio:
http://www.visualsvn.com/
This is a great tool for creating database documentation:
http://www.dbdesc.com/
My favorite .NET regular expression editor:
http://www.ultrapico.com/Expresso.htm
My favorite Obfuscator:
http://www.deepseaobfuscator.com/
My favorite .NET Help file creator:
http://www.innovasys.com/products/dx/
My favorite Installer Creator:
http://www.installaware.com/
This is my favorite decompiler right now.
http://ilspy.net/
My favorite training site:
http://www.pluralsight.com
If you are just getting started with .NET, this may help:
http://www.learnvisualstudio.net/
Some of my favorite quick reference sheets for .NET:
http://www.addedbytes.com/cheat-sheets/
http://refcardz.dzone.com/
Other favorites not .NET related.
My favorite notepad replacement:http://notepad-plus-plus.org/
My favorite paint replacement.
http://download-paint-net.com/
My favorite windows explorer replacement:
http://www.gpsoft.com.au/
My favorite link checker:
http://home.snafu.de/tilman/xenulink.html
My favorite directory size tool:
http://www.jam-software.com/treesize_free/
My favorite way to run applications on my USB Flash Drive:
http://portableapps.com/
My favorite corporate wiki:
http://www.screwturn.eu/
My favorite personal wiki:
http://tiddlywiki.com/
My favorite FTP and SFTP software:
https://filezilla-project.org/
My favorite Zip Software:
http://www.7-zip.org/
My favorite PDF printer:
http://www.cutepdf.com/
My favorite ISO mounter:
http://www.slysoft.com/en/virtual-clonedrive.html
My favorite cross database editors:
http://www.razorsql.com/
http://www.sqlmaestro.com/products/anysql/maestro/
My favorite online backup:
http://www.backblaze.com/
