I have to wear orthotics in my shoes and slippers. I had polio when I was five and although I was extremely lucky and got off lightly, my feet are a bit pathetic and floppy, so to prevent damage to my knees and hips, and to give me some stability for standing and walking, I wear some pretty serious orthotics. I used to joke that I couldn't even balance on both legs, let alone one! I can just about manage it with these in my shoes.
I finally found a podiatrist who makes this sort of orthotics. One of my old ones broke in half about a year ago and it's taken me this long to get organised. I wonder how long these will look so new and clean!