OK well you definately have some options.
#1. You can rent a car to get yourselves around incase you want to go to some offsite attractions like knottsberry farm etc.
#2. Pay out your nose for a taxi
#3. There is a disney bus line that you can take to and from your hotel to the airport
#4. There are also shuttles that you can take to and from the airport. They are called Super Shuttles. You call super shuttle to book, pay for the shuttle when you get to the airport, or if you book a trip online with travelocity, expedia etc. you can include it into your package. What you do is when you book your shuttle online, on the phone or at the airport, you give them the name of your hotel and they will drive you there, and on your last day when you want to be picked up to get dropped off at the airport you just tell them when you want to be picked up at your hotel and they do so. If you are flying into SNA (John Wayne) the cost is only like $10 or 11 dollars per person each way (To and from the airport). Its not that expensive. The shuttle may have a few people to pick up or drop off on the way, but its in your hotel area, and you can double check with them before you throw your luggage in the back of the shuttle and take off. It doesnt take long at all. At the end of your trip you will get to the airport on time for your flight home so its not a huge ordeal. Its a fun way to meet people and talk about disney and things to do there etc. It got us hyped for our trip when we took the super shuttle, and we were given extremely great tips on how to take on the parks.
#5. If you want to go to other attractions like Sea World, the Zoo, Medieval times Dinner and Tournament, Universal Studios etc. Look into their free shuttle services down there. Like Super Shuttle you tell them where you are staying and a bus picks you up at your hotel, takes you to those places and drives you back to your hotel at the end of the night. So incredibly convenient.
Also if you are talking about trams that go to and from your hotel to the
disneyland resort, there are tons of busses. If the hotel you are staying at is in the disneyland area then there will be a route where a disneyland bus will pick you up at. Take a look at the ART bus system and it will give you a map of where the disney bus routes are. Each bus has a number, and that same number bus picks you up in the morning, and drives you back to your hotel at night. The bus loop area at the resort is lined with numbered poles which coordinate with the number your bus is. (Say your bus is #6, at the end of the day, or during the day when you want to go back to your hotel for any reason, you stand at the pole with the #6 on it)
Keep in mind that the bus system stops running an hour after the park closes and they stop running and go for breaks around 1-2pm in the afternoon. If your hotel is walking distance but you are too tired to walk, keep in mind you might wanna consider a taxi. There are tons of those near the bus loop area of the resort.