We have an awning that can be hoisted by the main halyard, or which can simply lay on top of the boom when we are at anchor. Three extendable aluminum poles (like the adjustable boathooks) spread it across the breadth of the boat. Lines on their ends tie off to the lifelines or stanchions. We can slide it forward or aft a touch, as needed. It is great for shading the cockpit, cabin top, and deck 'midships, and so helps keep the cabin cooler. Note that it goes above the boom, so the sheet does not interfere with it. We have no topping lift, since we use a rigid vang. The mainsheet on our J/36 goes to a traveler in the cockpit. One thing that would improve our awning would be sides that drop down to the deck. This would help create shade when the sun gets below the yardarm, and could also help divert rain and spray if any should kick up.