In Memoriam, FlyerTalk Evangelist
Join Date: Jul 2002
Location: Durham, NC (RDU/GSO/CLT)
Programs: AA EXP/MM, DL GM, UA Platinum, HH DIA, Hyatt Explorist, IHG Platinum, Marriott Titanium, Hertz PC
Posts: 33,857
I did mine the old fashioned way. I kept an envelope in the back of my leather portfolio (I believe it was from a Holiday Inn Express, they'd put my bill in it) and I put all my receipts in there starting with the first one of the trip and going forward. I also tracked everything by hand on my notepad. I know this is antiquated but it worked for me, I never had a discrepancy. Once I got back to the office I entered everything into an Excel file.