Hope I'm not interrupting, seems to be a lot of tumbleweed rolling through here, but hopefully that means happy coin dealers!
I'm not a collector, but during my decluttering I've found various old banknotes from the 1980s. E.g. $20 Australian dollars and $5 Canadian. They're not mint, but I guess if a collector is on a budget they might want them. I might try ironing them, or is that a terrible thing to do?
Also I'm worried about evil buyers claiming they've not arrived and using Paypal to get a refund. In my ideal world I'd get UK banknotes in return, but I guess that's rather naive.