Emails and research. Then working with Bryan on some table column spans and alignment issues. He showed me a number of scenarios and how things were looking and lining up. This was all dealing with invoice sub totals, taxes, and grand totals. The main switch was whether or not a line item and/or invoice had sub inventory and sub attributes being displayed. The code was looking good, so we merge it into the master code branch. Pushed it up to all servers.