One of the things that I and anybody that works with me does is to take our shoes off when we go inside the house.
The reason we started doing this was just simple courtesy to the homeowner - we didn't want to track in dirt into a house they were trying to sell. A side benefit of walking through the house in stocking feet is using the feet as another method of inspecting.
Your feet have more than 7000 nerve endings and is one of the most sensitive areas of your body. When I first started walking in the house in socks, I also started noticing small seams, bumps and other oddities in the flooring.
These subtle changes underfoot give us clues to investigate as we go forward with the home inspection. On one recent inspection on an older home, I was able t feel the seams at each of the additions. I could also feel how small the changes were indicating that the additions were well designed to fit to the existing home.
Once, when visiting a niece of mine in the Portland area, I could feel a small change in the flooring by a wall. It seemed to be located at the shear wall (bearing wall) of the stairwell. Twenty minutes later my niece found me in the basement and I had an answer for her - the crawlspace hatch was located right under that wall and the top of the opening hadn't been reinforced to hold the extra load. It was sagging under the weight.
And yes, the kids and Donna joke they can't take me anywhere - my eyes - and in this case, my feet - are always moving.
Once an inspector, always an inspector I guess.