Excellent, thank you! I created journal entries that debited the travel expense account and credited Reimbursed Expenses (Income). I recognized each of the reimbursements in QB on the date that the invoice from the customer paying the expense was received. On the P&L report, this total value appeared as "Reimbursed Expenses" in Income. I used "Other Income" line 5 on 1120S. Makes so much sense now, much appreciated.
