In the 80s, I overused double link-lists in Turbo Pascal. It was my quick-and-dirty database block-storage of choice (minimize memory usage). Then I learned a

In the 80s, I overused double link-lists in Turbo Pascal. It was my quick-and-dirty database block-storage of choice (minimize memory usage). Then I learned about indexing and switched to dictionaries, btrees or red-black trees for most things.