I am making some switches in my quickbooks. I am going to start tracking jobs and costs by classes so I can get a more detailed p&l. My question is how do I enter into the invoices without putting an item. My items were originally lawn care, landscape, plow etc... Now I am making classes for those so I dont want the items to be the same and have columns and rows breaking down the same info on the p&l. Does this make sense?