Thought this might be useful to others, so am sending to entire list: My dad uses a tub transfer bench, which is exceptionally convenient. Installation is very simple-- I did it myself- You place it over the side of the tub and it stretches across the tub, so the person sits down, slides over a bit while sitting, lifts legs over side into tub, while sitting-- very safe. My mom has been using it for several years after suffering a stroke and my dad with Parkinsons has recently begun using it too.