OneDrive, Microsoft's file sync app formerly known as SkyDrive, lets you store your files online, edit Office documents in the free Office Web Apps, and easily access your online files from your PC.
Archive emailed invoices under the names they arrived with.
Your email attachments land in the archive folder you choose, with their original filenames, ready for your team to find.
Mark near-due bills missing receipt files for follow-up.
Your payables lead sees missing receipts before bills come due, with the next owner named on the bill task.