public sealed class Singleton
{
    private static readonly Singleton instance;

    // Explicit static constructor to tell C# compiler
    // not to mark type as beforefieldinit
    static Singleton()
    {
        instance = new Singleton();
    }

    private Singleton()
    {
    }

    /// <summary>
    /// The public Instance property to use
    /// </summary>
    public static Singleton Instance
    {
        get { return instance; }
    }
}