Mrs Meyer's Lemon Verbena dish soap, $1.42/bottle shipped / $4.26 shipped total when you clip the 20% off coupon and opt for Subscribe & Save after 35% discount
I'm still looking up packing cubes. The eBags sale hasn't started yet and I don't know the price. The anazon brand is 25% off today but they might be out of stock by now since they went up early this morning. But on ebags's site they are having a sale. If you sign up for their newsletter you get 20% off. And you get 12% cash back on their site today via ebates. Annoying to do all that but if the prime sale sucks for them, doing the above makes them almost the same price as the Amazon cubes.