This is a huge problem! I know from experience! I have severe PF with heel spurs, to the point where my doctor told me if I hadn't come to him when I did, I would've been disabled. After cortisone shots, physical therapy, yadda, yadda... I am able to function almost normally. I live in Crocs, as my doctor forced me to wear them. However, for Disney I had to switch pairs often as my feet would adjust to the level of support and need a change. I like the newish Crocband flat. They are super cute as Crocs go, and provide a lot of support. They have also come out with a Croc RX that is specifically for PF. I will be purchasing several different pairs for my next trip in May. I am going to try the new Croc toners in person at the store before purchasing. I also have a pair of Tennies that I got fitted for at Second Sole. They were expensive, but feel like I am walking on clouds. The are Nike Bowman series (or Bowerman? can't remember) I got fitted two different times there by two different people, and both times that was the series that worked for me. I didn't purchase the first time, but eventually went back and a new guy fitted me into the same series. They were costly, but effective. I will be looking into some of the toners that I think are seriously ugly, but if they don't hurt...well...I'm in. After all, I resisted the doctor about the Crocs. I told him flat out "no. I will not wear ugly shoes." He said, "yes you will." and now that's mostly what I wear. Take it slow in Disney or you will do what I did the first time, and end up with swelling and bleeding under the skin. I was a hot mess. Every night I couldn't wait to soak my feet in the hot tub, massage my muscles, and then put iron man muscle rub on. It helped to soak them in the AM also. I'll probably do ice this time too. Crocs almost never give me blisters, but I would wear them only a couple times to break them in before Disney. I broke mine in a little too much before my last trip. One thing I've learned about PF and Crocs is that once the tread on the bottom starts to wear off, I start to have pain. I am visiting my doctor before I go again. I may do a cortisone shot just for precaution's sake, and I will definitely be taking pain killers with me. Good luck!