Pogotheostrich wrote:Keep the same bills and have a machine punch a hole at different locations on the bill for different amounts.
What would prevent someone from punching a $5 hole in a $1 bill? That's the problem with anything other than actual size.
It would be a lot less likely that a cashier would have a hole punch sitting around in case a blind person walked in though. Right now they'd just have to hand the blind person a $1, tell them it's a $10, and pocket the extra $9.
Honestly, I don't see the point in changing money. If you're blind, you should just use a debit card since they can be used almost anywhere now. Someone can still rip off a blind person who's using a card, but at least there'd be a record of it for them to see later.
Even if they needed to use cash, it wouldn't be too hard to get a system in place. For example, if they carried nothing but $5 bills in their wallet, it would be impossible to be ripped off when they get change back.