My dad is 94.
Recently he has implemented extra long handles on the toilets and mum's stairlift as her wrists/grip couldn't provide sufficient force.
He has just made a wooden plinth for mum's chair to raise it up by 3-4 inches to make it easier for her to get in and out of. He rigged up a system of poles and ropes to lift chair so we could get it onto the plinth.
He is amazing.
Scattered across the house are bits of furniture he has made over the years, tables, foot stools, display cabinets, bookcases, ...
Had to tell him 5 times what time we were going out this morning though!