Toys R Us is currently running a BUY ONE, GET ONE promotion on all Star Wars 3.75" figures and vehicles. This promotion runs now through October 8th, and is BUY ONE, GET ONE FOR 40% OFF.
There is also a sale currently on ALL lightsabers. They are currently 20% off. The standard Force FX lightsabers are priced around $149 each, so this sale would get those pieces for $120. And the Kylo Ren Force FX lightsaber which sells for over $200 would see a very significant discount.