If the toilet is where independence is starting to wobble, a toilet surround gives you two solid armrests exactly where your hands look for support. No wall drilling, no renovation, just a frame that stands around the existing toilet.
The Aspire aluminium surround ($120) adjusts in height with push buttons and is rated to 175kg. The wide toilet surround ($249.95) is a fixed height steel frame with 620mm between the arms, rated to 150kg, for someone who needs more room to sit down.
Buying the wrong support here is common, because the categories overlap: surrounds, raised seats and over toilet aids all solve neighbouring problems. Save yourself the second purchase and call 1300 216 888 first. Two minutes with a pharmacist and you'll know which one you need. Usually claimable as NDIS low cost assistive technology.