I paid for the custom inserts from a podiatrist and the worked very well for me for somewhere between 3 and 5 years. I have plantar fasciatis and need arch support. Then I had an ankle injury and went to an orthopedic surgeon who said he didn't like the inserts at all because they're rigid and don't allow the foot to move naturally. (Even though the worked very well for me I'll admit my foot was somewhat tired and maybe just a little sore at the end of the day. But definitely no pain.) He watched me walk and recommended a flexible insert that I can buy online for about $30. I bought two pair last summer, wear them every day, and feel like they've now "broken down" and need replacement. I think everyone is so different, though, that everyone needs a different remedy. It's expensive and frustrating, but so important to take care of.