I haven't done too much, but I did put a stairlift to the
lower level/basement/laundry/pool rm/den/and used to be DH's workroom.. I love it.

I have a small scooter for indoors and a larger one for outdoors. I use my walker when I'm not in a hurry. I was thinking of putting an outdoor porch-lift, but this old house would almost have to be rebuilt. too many stairs and alcoves, so I get out through the garage, as I can still walk/wobble a bit.

Good luck Vlys.