How about a lid insert that would act as a cord wrap. I like to keep a cord with each tool "just in case", but I only use that cord 15% of the time. So to use any tool, I need to first carefully remove the coiled cord that's piled on top of the Festool item.
Thinking about that a little bit more, if the lid insert/cord wrap were to be hinged, then an owners manual might also be placed behind it for safe keeping.