A stack of 15 floppy disks for one program. Please insert the next disk to continue (I can't remember the exact wording). Command prompt to A:\ and having to see what the install program might be called. Bring amazed that CDs could autorun programs.
Booting from a single floppy disk in A: and using the other floppy drive (B: of course) to store programs and files because there was no hard drive. And the floppy disks only stored something like 300 KB.
I lie, not fond memories, the 19th floppy was always illegible for some reason. I ended up dragging my box to the office to hook it up to the leased line (that's something else that's gone btw).
I remember having to rewind the cassette then hitting reset on the counter, then fast forward to the place on the tape where your program began then entering LOAD then pressing play... All for the crappiest artillery game...