This is a test of commonsense. Complete the next sentence:

How to hang a curtain swag
Use single brackets if you're going to hang the swag by itself.
If you're just going to have the swag over the window without any curtains, single curtain rod brackets are the way to go. Single brackets will hold up 1 curtain rod, which is all you need for the swag.
Get double brackets if you want to hang curtains up with the swag. Double curtain brackets come with 2 slots instead of 1 so they can hold 2 curtain rods.