Today it is rare to find a hotel without rooms accessible for people with disabilities, and many B&Bs have made the necessary adjustments as well. The results often are the best rooms in the house. Make sure to ask for the special rooms when making reservations, and question smaller establishments closely about exactly what accessible means to them.
People with permanent disabilities can get a free lifetime pass to national parks and many other federal public lands, and a 50% discount on some camping fees and the like. Apply in person at any facility, such as a park that charges an entrance fee. You will need to show proof of a medically determined disability. Other details (including the program's absurdly long name) are the same as those listed for the elders' pass in the next paragraph.