trigger taskTrigger on Task (before insert, before update) 
{
	
	Set <Id> whatIdSet = new Set <Id> ();
    Set <Id> whoIdSet = new Set <Id> ();
    Contact contact;
	
    for(Task t : trigger.new)
    {
        if(t.WhatId != null)
        {
            whatIdSet.add(t.WhatId);
        }
        
        if(t.WhoId != null)
        {
            whoIdSet.add(t.WhoId);
        }
    }
        Map<ID, Account> accountMap = new Map<ID, Account>([select Id, 
    														   Name, 
                                        					   Number_of_Attempts_to_Schedule_Review__c, 
                                        					   Number_of_Attempts_to_Schedule_TaxPlan__c, 
                                        					   Number_of_Attempts_to_Schedule_TaxPrep__c
                                   					   	  from Account 
                                  					     Where Id in :whatIdSet]);

    Boolean accountNeedsUpdating = FALSE;
    Boolean attemptToScheduleReview = FALSE;
    List <Account> AccountsToUpdate = new List <Account> ();
    String whatObjectType;
    Account household;

    for(Task t : trigger.new)
    {    	
        if(t.WhatID != NULL && accountMap.containsKey(t.WhatId))
    	{
    		whatObjectType = 'household';
    		household = accountMap.get(t.WhatId);
    	}

if(trigger.isInsert)
    	{
    		if(t.Subject=='Email:Scheduling a Review Meeting')
    		{
    			if(t.Attempt_to_Schedule__c == NULL)
    				t.Attempt_to_Schedule__c = 'Client Review Meeting';
    			else
    				t.Attempt_to_Schedule__c += ';Client Review Meeting';
    				
    			attemptToScheduleReview = TRUE;
    		}

if(t.WhatId != NULL && whatObjectType == 'household')
			{
				if(t.Attempt_to_Schedule__c != NULL && (t.Attempt_to_Schedule__c.contains('Client Review Meeting') || attemptToScheduleReview))
				{
					if(household.Number_of_Attempts_to_Schedule_Review__c == NULL)
						household.Number_of_Attempts_to_Schedule_Review__c = 1;
					else
						household.Number_of_Attempts_to_Schedule_Review__c++;
						
					accountNeedsUpdating = TRUE;
				}
}
		if(accountNeedsUpdating)
			AccountsToUpdate.add(household);
					
		accountNeedsUpdating = FALSE;

try
    {
    	if(AccountsToUpdate.size()>0)
    	{
        	update AccountsToUpdate;
    	}
    }
    
    catch (System.DmlException ex)
    {
        System.Debug (ex);
    }
}