Most of the stores I interact with accept it -as long as it passes a bill checker- but they take a commission -usually 4$- on it.
I don't think they'd take it at all if there was a risk to lose 96$ on it.
People who have access to a fresh dollar bank account[0] have the ability to deposit the old bill and then try to withdraw it again in hope of getting a new bill.
A couple of services spun up that take lower commission for bulk conversions e.g. 2$ instead of 4$ for each 100$.
A bit off topic: I'm facing an issue where a monitor works only when getting power (220v 60hz) from an outlet but not from an external power generator: ecoflow river pro (220v 60hz) as well.
It's the only appliance that doesn't work. It turns on normally but stays black (I use it in mirror mode).
Every hour or so it may show the correct content for a glance then it'll turn black.
I suspect the power supply source is not the real reason, maybe there's something causing interference with the cable?
I'm waiting to have a free weekend to check it out.
My guess would be the power supply is putting out something closer to a square wave than a sine wave and the monitor power supply is unable to turn that into DC.
Is there another appliance that I can test to see if that's the issue? I don't have an oscilloscope.
Edit: I just tested powering it from a UPS: It's flickering more now and when it show the correct content it stays for a second more then when powering from the ecoflow.
It sounds very likely that this might be electromagnetic interference. The good part is that it’s easy to troubleshoot, just move the generator (or the monitor, whichever is lighter) far away, like in another room or outside.
You can also try a different, thicker cable, if you have one handy. The thicker cables are usually better shielded by having a sheath of tiny wires to catch that interference and conduct it to ground.
I just tested moving the ecoflow to another room (both door closed ~5m between the ecloflow and the monitor) and used an extension cable to power the monitor.
The issue is still happening.
Unfortunately I don't have a different HDMI cable at hand now. I'll test another cable as soon as I get my hands on one.
When I get a chance, I try to dig into the "magic" parts of the tools I'm using.
I've wrote a bit on this on my blog in the context of creating a (nano) web framework similar to Rails [1]
and a (nano) http client library similar to requests [2].
I find this to help assure me that if I have to go one layer deep in abstraction I'd still be able to learn how it works.