Transition to digital is hard, even for those of us who grew up through the revolution. I'm a firm believer that original hard copies should be kept for a minimum of 3 years for IRS purposes. The procedure that I followed at RIT seemed cumbersome while working there, however, I've been adopting their format.
Namely, At the end of the week all receipts are logged into a spreadsheet with Date, Vendor, Amount, Description, category. The hard copies are then glued to a 8.5 x 11 if they are not already that size. The long receipts are cut to fit. Those are the submitted to the financing department, or for us small business folk, their filed. Going the extra step means digitizing them and naming them / filing them so they will be searchable.
I will ultimately go this route, though due to time constraints I'm still currently skipping the digitizing. This year alone I have had to dig out a few receipts from the file cabinet. As your file cabinet grows, you'll only wish it was digitized that much sooner. Keystrokes are quicker than fuddling through folders.
Best,
Mark