Seems minor, but it would be great if they flagged any expenses that are sitting there that are in danger of being too late to upload.

The product should have more notifications and alerts. It should alert you at dinner times, so you don't forget to upload your expense. Also, it should improve the currency converter. When you travel abroad, it records the expense on the exchange rate of the recorded expense, and it does not update it once you submit the final report to be reimbursed.