Kayaking with a single-blade paddle.
Hey, I found this great article about paddling a kayak with a single-bladed paddle, instead of the normal double bladed one. I’m always grateful for my double-bladed paddle (as I consider myself much too lazy to switch sides while paddling), but I might try this next time I am rafted up for lunch with my paddling buddy and can only paddle on one side. The basic idea is that each of these special strokes corrects for the yaw of the boat resulting from paddling on only one side. Or you can use a rudder.
Canoeists are scoffing because they have known this all along.