I have plantar fasciitis in both feet and bone spurs under both heels, probably from teaching school. My experience? The only thing that gave me relief was physical therapy. I tried custom orthotics, $300 later, I threw them out.
I try to never walk barefoot in the house (hurts after a few minutes) and I wear a good running shoe pretty much every day. The only exceptions I make are special occasions.
Foot pain is terribly miserable, it's not like you can just sit down all the time. Plus the pain doesn't go away when you do.