In 1967 I got 1867-1967 dated dollars from my bank (like Ozempic, I just asked), rumor at the time was these were not sent to banks by the BOC but were issued in limited numbers and only available at official Centennial events such as Expo or by authorized agents. Friends and I spurred by the rumors thought that these were sure to skyrocket in value. Turns out certain Centennial notes with serial numbers are more valuable to this day. Raw 1867-1967 dollars, which are no longer legal tender, are still only worth face value today, dealers do not want them.
Banks were open 10-3 four days a week and open late one day a week, usually Friday. Some were open late Thursday instead of Friday to accommodate people like my dad who got paid on Thursday. I don't know if these hours were set by law or customer convenience.
A dollar did go much further then, but was also much harder to earn. I was a student then and my summer job paid $70 a week, which wasn't too bad considering minimum wage was $1.25 an hour.
"Dipping" is not considered cleaning...
-from PCGS website