I've been doing this thing where I pass an 'output' object into methods. The things I like about this are * I can vary implementation of output objects like one for an MVC ViewModel and another for a WPF ViewModel * Keeps privates of business objects (for lack of a better term) private * When I have methods that need to return more than one thin…

example.cs

public class Payment {
  private int _accountID;
  private int _userID;
  private decimal _paymentAmount;
  
  /* I realize this looks almost like it should be a FI, but
     that would just distract from the point */
     
  public void OnAccount(int id) {
    _accountID = id;
  }
  
  public void FromUser(int userID) {
    _userID = userID;
  }
  
  public void Amount(decimal amount) {
    _paymentAmount = amount;
  }
  
  public void WithCard(CardData c) {
    _cardData = c;
  }
  
  /* THIS */
  public void Review(ConfirmationPage page,ISomeLookupService s) {
    
    page.PaymentDate = DateTime.Now;
    page.PaymentDescription = "Credit Card ****" + _cardData.LastFour;
    page.PaymentAccount = s.GetAccountDescription(_accountID);
  }
  
  /* INSTEAD OF */
  public ConfirmationPage Review(ISomeLookupService s) {
    var page = new ConfirmationPage();
    page.PaymentDate = DateTime.Now;
    page.PaymentDescription = "Credit Card ****" + _cardData.LastFour;
    page.PaymentAccount = s.GetAccountDescription(_accountID);
    return page;
  }
}

And if its working for you, then rock it out!