[Zanshin]

I singlehand and agree that it makes life easier when all lines lead back to the cockpit; that way there is no need to leave the safety of the cockpit for any normal conditions including putting in up to the 3rd reef. I have in-mast furling for the mainsail and think that is beneficial.

Another important thing for a singlehander is an autopilot or wind-vane steering. This allows you to do various things away from the wheel while under sail, be it repairing something, going below to cook, or to get some sleep.

I've seen boats without self-tailing winches which would be next to impossible to singlehand easily.