A simple class for guarding against nulls, etc..

Guard.cs

internal static class Guard
{
	public static void AgainstNull(string name, object value)
	{
	    if (value == null)
	    {
	        throw new ArgumentNullException(name);
	    }
	}

	public static void AgainstNullOrEmpty(string name, string value)
	{
	    if (string.IsNullOrEmpty(value))
	    {
	        throw new ArgumentNullException(name);
	    }
	}
}