Thanks so much for your advice. When I bill, all the receipts, assistant/stylist invoices, relevant credit card charges are submitted along with my invoice.
But now, I won't have the studio rental on my credit card anymore as I'll be renting my studio share to the client. So do I create an invoice for the studio rental with my name on the letterhead and submit that as the studio rental receipt?
What do other photographers do when they rent out their studio to their client?
Thanks again!