For Visual Studio 2015 :

Name Video Code
Cryptography https://www.youtube.com/watch?v=kKq0DjvFpok https://github.com/ignatandrei/ToolsAndUtilities/tree/master/VS2015/Crypt
Versioning https://www.youtube.com/watch?v=45WhlpwIOW8 https://github.com/ignatandrei/ToolsAndUtilities/tree/master/VS2015/Versioning
Zip files in .NET https://www.youtube.com/watch?v=fnyjEwPAQ9E https://github.com/ignatandrei/ToolsAndUtilities/tree/master/VS2015/ZipNet
Logging in .NET https://youtu.be/OvzcBTm3Sow https://github.com/ignatandrei/ToolsAndUtilities/tree/master/VS2015/Logging
AppContext in .NET https://youtu.be/GMgn4o3yPqw/a> https://github.com/ignatandrei/ToolsAndUtilities/tree/master/VS2015/ContextForSwitch
Clean .NET Project https://youtu.be/V7isHUXX2wA/a> https://wf.codeplex.com/wikipage?title=Clean%20Project%20Overview&referringTitle=Documentation
Parse WebPage( HtmlAgilityPack) https://youtu.be/ENrQ1ete8xw https://github.com/ignatandrei/ToolsAndUtilities/tree/master/VS2015/HtmlAgility
Instrumentation(AOP) https://youtu.be/qe2kpuuWXkw https://github.com/ignatandrei/ToolsAndUtilities/tree/master/VS2015/InstrumentationPostSharp
Copy constructor and reflection https://www.youtube.com/watch?v=45WhlpwIOW8 https://github.com/ignatandrei/ToolsAndUtilities/tree/master/VS2015/CopyConstructorReflection
Test Web GUI https://youtu.be/dHs1A7QX3PI https://github.com/ignatandrei/ToolsAndUtilities/tree/master/VS2015/SeleniumTesting
Full playlist: