These layouts show a good use of two loveseats and a pair of chairs, or a pair of chairs and a loveseat.
Most importantly: These plans only work if the size of the item is carefully plotted BEFORE purchase.
It makes me sad when I get calls from potential clients--calling after making a purchase--because they need help now that their new furniture will not fit into the room for which it was purchased.
Doing the layout first saves money in two ways: first, on the quantity of items purchased (generally fewer total items), and, second, saves money by making a better selection the first time.
Remember, "furniture always looks bigger in a house than it looks in the giant furniture store or club store...".