Well, from the late 80's, I'd have to say Turbo C -- from the editor, Ctrl-F9 would run a make on the C file, then launch the executable using the debugger. If there was a syntax error, it would come back to the editor and leave the cursor on the line with the first error, with errors shown in the bottom pane.

Coming from a situation where the editor, compiler and linker were all separate, this was magical.

More recently, I have to say that tmux is amazing -- however many windows you need, in whatever arrangement you need, showing whatever you need -- vim window for editing, log files, command line, whatever. So cool -- and you can detach, then come back to the session later, and everything's where you left it.