I over-do the door thank yous (male or female) in that if I find myself following someone out of my floor, I have to say "thank you" when they open the door the landing, "thank you" when they open the door to the stairwell, "thank you" when they open the door out of the stair well two floors down and "thank you" when they open the main door of the office in the lobby
What I really wish is that we'd gone too far the other way with people with disabilities. Among many other nuggets, I recall the time we were boarding a ferry and the land bridge couldn't go to the normal deck so we had to board via the car deck (one deck down). Virtually everyone insisted on getting the lift up to the normal deck, even looking at me, ds in a pushchair and dh in a wheelchair. One couple even queue jumped us .
When I have to turn down an offer of help for a guy in a wheelchair, then I know we have gone too far.