Did you get it done yet?
Sometimes I find that it seems like a bigger issue than it really is. Once you sit down and start, you might surprised how quick you finish.
As another poster mentioned, it does help to scan everything. I scan my receipts with my iPhone and email them to myself. I then save them to my downloads folder before uploading them in reports.
As I go through my spreadsheet it's easy to scan through the downloads folder by date and gather my expenses.
Also, most of the MSC's keep pretty good records online to help you catch up. Remember in Sassie logs you can sort by date by clicking the arrows at the top of the list.
Good luck! Let us know how it's going.
AndrewTX
Certifiable