Last year, I worked on a PHP application. Getting it to a CVS trimmed down the folder from 3 GB to 100 MB with essential assets. They just dumped things in there and backup the whole server instead.
At one point I worked on a project where for source control the previous people would just copy/paste all the code in the file into a block comment at the bottom of the file. Some files were three hundred lines of code followed by several thousand lines of block comments containing near-identical code. To be fair, these were non-CS students who had never been taught any different.
The first company I worked for in the 90s used a floppy disk for each version, double floppies if it was a release version sent to the customer. A section of a drawer in a filing cabinet was allocated for each product. Versions were stored and retrieved using SneakerNet.
