What are the best shoe inserts for walking all day?

Honestly, the thing that helped me most was switching to custom orthotics. I tried a bunch of store bought inserts, but they never seemed to support the exact spots that hurt. Getting fitted made a huge difference because the insoles matched my arch and gait. They felt strange for a day or two, then my feet finally started to relax and I could walk for hours without that deep ache. If you can swing it, custom orthotics are worth it.