I've just come across this thread and read all the posts. I reckon I could list the age of all the poster's based on their comments (a la Henry Higgins).
I remember, and used almost everything that has been mentioned (except the Curta Peppermill).
We had milk delivered bulk into a billy. My parents had a stack of 78s. I was an ink monitor in my class. I owned a Commodore 64. I used 4 figure logs and trig tables in high school, which later extended to 8 and 10 figure tables at work (survey).
I designed a 20 storey building (200 Queens St, Melbourne) using a 2 sided slide rule and 8 figure log/trig tables.
Later on I owned an HP45 (could never trust using the "stack" memory).
I remember working in an engineering office during school holidays. They had a calculating machine that was wheeled around from desk to desk. You pushed a few things, then pulled the big lever at the end - like the old poker machines.
The worst thing in a drawing office was the pens
. You put a drop in ink between two blades (resembling a pair of tweezers), then turned a screw until the pen made a line just the right thickness - but of course by then the ink had dried up and you had to start all over again
.