1. Write BBS. The underneath stuff stays the same, but the Sysop can configure
different keys/words to be used to activate stuff (like DIR or F or L to list
files), whether the input stays with the menu or if everything scrolls like a
regular command-line interface.
2. Write fantasy/escapist novel... kinda an epic.
3. Write program to turn letters into script using regular characters.
Example: e becomes _ requiring three lines.