Ok lets all add our tips for making life as easy as possible whilst on holiday in Orlando.
I will start:
1 - for changing pads (diapers) at the parks head to first aid. They will provide you with a bed in a private room. This is also ideal for when they want to have a nice long stretch.
2 - When booking restraunts remember to let them know you have a wheelchair user in your party. They will be able to sit your party in a good area were the w/chair user will not get knocked or have the chance of dinner on thier laps when people or server's squeeze past.
3- dont forget to go to guest services for your gap card. You may need to produce a doctors letter if it is less obvious that they have a disability. Disney will provide one for your whole stay were's you will have to renew the Universal ones on each visit.
4- Buy your Seaworld tickets for carer and the person with a disability at the park. You will both get in at a cheaper rate. Universal use to do this as well but not sure if they still do.
5- If your child/adult is tube fed speak to your dietician before you go. They may well be able to arrange for the pump and feed to be delivered to your accomidation. Saves you carrying it all there.