MagicalUnicornMvcErrorToolkit (nuget): Would you like your ASP.NET MVC web application to handle both 404 Not Found errors and 500 Server Errors (and everything in between?).  Hells yeah, you do! I do! Unicorns do!  So this little nuget package is for you -> it's sets up some settings in your web.config & global.asax. It adds a controller with the appropriate views and off you go :)  Or you can do it manually yourself: http://stackoverflow.com/questions/619895/how-can-i-properly-handle-404-in-asp-net-mvc/7499406#7499406  Shout out to David Fowler for the suggestion, while in SignalR. :)
Keywords: asp.net-mvc|magical-unicorn|error-handling|404-not-found|500-server-error