We first noticed this approach to furling on the Thames River barges we saw last spring in London. It is quick and efficient in terms of manpower.

The gaffs stay in place and a series of lines furl the sails against gaff and mast. This does leave you with weight and windage aloft, so it might be less appropriate offshore in a gale. But for coastal cruising, why not?

At the other end of the spectrum is this modern yacht with a wide boom, full battened main, and lazy jacks. The sail cover is mounted along the boom edges and zipped into place, which does require agility.

A sail training ship combining both approaches. Furling lines from the yards to the deck for reducing sail. And then crew agility for a harbor furl (the crew goes aloft, walks the foot ropes, and neatly furls the sails.