A few years back I would cherish the days when the forecast would call for little or no wind; these days I prefer a bit of breeze to ripple the waters of the bay and occasionally produce a few small waves. And there is nothing like popping the sail on a beam wind to make paddling so much easier.
A common misconception is to assume that a sail on a kayak is only good for downwind sailing.
With a well designed sail like the Flat Earth Sail I find that I can sail out and back with very little effort from my paddling; the wind does most of the work for me. When the breeze is not strong enough (below 10 knots) a few strokes often help to catch a wave.