trigger ONEN_HouseholdChangeInHouseholding on ONEN_Household__c (after update) {
 //system.debug('ONEN_HouseholdChangeInHouseholding FIRED');
 //list to hold HH's that are changing membership count
 List<Id> HHChanging = new List<Id>();
 //list to hold HH's that now have 0 members, for deleting
 List<ONEN_Household__c> HHForDelete = new List<ONEN_Household__c>();
 //list to hold Contacts that need to be updated with new Household Name and Greeting
 List<Contact> ContactsForUpdate = new List<Contact>();
 
 ONEN_Household__c HouseholdBeforeChange;
 
 //put all changing HH's in the map
 for (ONEN_Household__c HouseholdAfterChange : Trigger.new) {
  boolean householdAdded = false;
  HouseholdBeforeChange = trigger.oldmap.get(HouseholdAfterChange.id);
  boolean addressChange = HouseholdBeforeChange.MailingStreet__c!= HouseholdAfterChange.MailingStreet__c|| HouseholdBeforeChange.MailingCity__c!= HouseholdAfterChange.MailingCity__c|| HouseholdBeforeChange.MailingState__c!=HouseholdAfterChange.MailingState__c|| HouseholdBeforeChange.MailingPostalCode__c!=HouseholdAfterChange.MailingPostalCode__c|| HouseholdBeforeChange.MailingCountry__c!=HouseholdAfterChange.MailingCountry__c|| HouseholdBeforeChange.MailingCounty__c!= HouseholdAfterChange.MailingCounty__c;
  boolean nameOverride = HouseholdBeforeChange.Override_Household_Name__c!= HouseholdAfterChange.Override_Household_Name__c||HouseholdBeforeChange.Override_Greeting__c!= HouseholdAfterChange.Override_Greeting__c;
  boolean memberCountChange = HouseholdBeforeChange.Member_Count__c!=HouseholdAfterChange.Member_Count__c;
  boolean emptyHousehold = HouseholdAfterChange.Member_Count__c==0;
  
  //if member count changes
  if ((memberCountChange&&!emptyHousehold)||addressChange||nameOverride) {
   //add to the changing list
   //HHChangingMap.put(HouseholdAfterChange.id,HouseholdAfterChange);
   HHChanging.add(HouseholdAfterChange.id);
   householdAdded=true;     
  } 
  
  if (emptyHousehold) {
   HHForDelete.add(HouseholdAfterChange);
  }

 }
 if (HHForDelete.size()>0) {    
       delete HHForDelete;
  }
  
 } else {
  //system.debug('ONEN_HouseholdChangeInHouseholding DID NOT EXECUTE');
 }
}