As a wheelchair user, i'm still somewhat "special", expecially when it comes to work as a freelancer or consultant working for multiple companies, no matter how big they are.
Over the last 15 years, i experienced a lot of thrilling moments when the wheelchair starts to play a role. And the same happens when it comes to community events.
Since HongKong Summit, back in 2013, i attended all the summits all around the world. Additionally i also visited a lot of other community events and even hosted meetups for OpenSource Projects. And each and every of those events had at least a small "issue".
The OpenStack Foundation did a lot of improvements over the last summits and they really care. Same goes for most of the events (i guess), but i would like to give you a few hints, tipps, experiences to make inclusion easier.
Lets see how we can make events, work, just say the world, easy accessible for each and everyone, so that we don't need to care, it just works.
If you do Community Events, you'll get a few points for your list on how to include people, how to lower barriers, how to make your events hassle free for each and everyone (hopefully)
If you're an employer (not limited to Open Source products :), you'll hopefully will also learn a few things on how to make the life easier for people which are somehow special.
Simply change your perspective, because there is a lot to simply overlook every day.
And in the end you can easily work with people like me and profit! :)