dotNET tip of the day is about knowing key points that can help you get more out of building with the dotNET platform.
Using StringBuilder.Append()
When possible and you are building strings from multiple parts use StringBuilder.Append() rather than += which is less efficient.
Strings are immutable, and therefore when you add a value to a string a new instance is created using memory and resources.

Useful links
A list of some useful links where you can find out more about dotNET C# and what’s new in the .NET World.