It's not one of the most important questions, but nevertheless I don't understand:
Why is the souvenir "Last 2020" categorized under "Specific day souvenirs"?
Groundspeak HQ doesn't tell anything about it in the additional information as far as I understand it right:
"We did it. We made it. This year brought unprecedented change, but we still came together as a community despite challenges. Through it all, caches were found, souvenirs were earned, and travel bugs achieved their mileage goals.
[Last 2020] "
There will be another souvenir at the real last day of 2020 - but maybe I'm not informed very well.