There are only a select few developers I have worked with who can consistently maintain total recall of all the standard .NET fundamental functions, like reading from a file, searching a directory, updating registry settings, etc. It is almost like they have mastered the Memory Palace technique. The rest of us reach for code we have stock piled or, even more likely, start searching the web.
A recent search of the the Visual Studio Gallery clued me into the Bing Code Search add-in for Visual Studio 2013. This package makes it easier for .NET developers to search for and reuse code samples from across the coding community, including MSDN, StackOverflow, Dotnetperls and CSharp411, now we all have a memory palace.