The cheapest way of lighting a room is to replace single light bulbs from the ceiling point with down-lighters, spot lights, free standing lamps or wall lamps.
The shades could be cheap paper lanterns, or wire frames which you can cover with raffia. Make sure they are hanging over a piece of furniture, like a coffee table, or someone will bang into them. Cheap bulbs, and shades in attractive designs are always available at chain stores.
