The older way was for a sighted helper to batch-crease bills' corners in a coded way to keep the wallet sorted. That can easily be done by requesting packets of currency of all-one-denom per bundle from the bank, for the blind person to crease for themselves. They can set it up with a known fave teller to always give them their withdrawals that way, I bet. Just as Alzheimer pts can request 'scripts from pharm be filled in pill-sorters.