I have a box client whom I dread doing their books. Each year, they gave me bag(s) of mess-up receipts, invoices, bills, bank, and credit card statements that looks like a house robbery in-progress. Oftentimes, papers were folded oddly or have water stained with no meaning pattern to follow. This is not the real challenge as I have other clients who did the same as I have no problem organizing them. I understand they hate paperwork.