What do you use "input sheets" for?

You asked what I thought of asking but didn't. 

We use them to make sure our CRM is up to date with any change of email, address or phone number that might have been updated during the tax return preparation. They get printed after a return has been efiled/accepted and a support staff compares them to the record in the CRM. 

I have used input sheets as a sorta kinda organizer for my very less than organized S-Corp, Partnership & Corporation. It has last year's numbers and a place for them to put their less than creative this year numbers. At least they were not my numbers. 

Back in the day - Input sheets were cut & pasted for the K-1 input on the 1040's. A very organized Lacertian from Sebastopol California submitted them to Larry & his cohorts and it showed up as an input sheet the next year. 

Oh boy, does that bring back memories. CP/M, 5.25 inch DS/DD floppy disks, Kaypro, Printronix Line Printer, 3 part pin fed carbon printer paper, a machine to separate the carbon paper out, with later NCR paper we had a burster, to separate the sheets, a huge table to collate the 3 copies of the tax return (praying Mike didn't get Beatrice's Schedule A, since not everyone got every form), leaving at 2 in the morning to be back at 8, ... Ah! the memories. It did beat the cost and time lag of a service bureau (send UPS on Monday, get it back on Wednesday, send corrections on Thursday, ...)