I do use the same shoes that I run in -- I try to replace them prior to getting heavy on the miles, though. And I use the superfeet insoles, and sometimes double layer socks. I'm going to try more smartwool socks this year and see what I think. I've actually had good luck with plain old Balego running socks in the past, despite trying lots of fancy "walking" socks -- they are way too thick for me.

Ok.. that was a lot more than you asked me!