Don’t be afraid to ASK for something. We recently stayed three nights at Animal Kingdom Lodge but had booked a room overlooking the pool (about $70/night less than a Savannah room, overlooking the animals). When we arrived we asked the very polite person behind the counter if we could get an upgrade to a Savannah room. She looked into and said yes. We saved $200 by asking that question AND had a much better room for three nights!