I have a lot of trouble walking if I try to do too much of it. I don't do a lot of the family shopping. If I try to stand all day, I get all wobbly. I lecture from a stool now and nobody has noticed anything wrong. Well sometimes they stare at my eye and I know that it is either twitching or closing. I suspect that I am more active than most people that have trouble getting up and down. I've never used the power buggies. I just leave when I get too tired.