Pro-tip; never do .ToUpper() / .ToLower(), use foo.Equals(bar, StringComparison.OrdinalIgnoreCase), saves a string allocation also only loops over the strings o

Pro-tip; never do .ToUpper() / .ToLower(), use foo.Equals(bar, StringComparison.OrdinalIgnoreCase), saves a string allocation also only loops over the strings once. For the truly anal.