I've got crap, flat feet and wonky knees.
This makes my gait odd - I land on the outside of my heel, but roll through to push off with my big toe, which means that I defeat any attempts to decide whether I pronate or supinate. Ok, not a massive problem, there are plenty of 'neutral' trainers out there - however, it means that I get blisters on the arches of my feet and on my big toes if I put in any kind of respectable distance walking or jogging.
Foot powder, liner socks and/or taping don't really cut the mustard, which is highly frustrating.
Does that panel have any advice for other things to try?