Haven't thought about accessibility lately? You should. Yesterday, the U.S. Supreme Court turned down an appeal of a lower court ruling by Dominos Pizza, which ruled their website inaccessible.
The U.S. 9th Circuit court rules that
"...the Americans With Disabilities Act protects access not just to restaurants and stores but also to the websites and apps of those businesses."
If you're building a site for an organisation that has to abide by the Americans With Disabilities Act, be careful! Do your research and make the site accessible -- not just to be inclusive and because it's the morally right thing to do -- but because you might get sued.