Socks!
 

okay..this might sound silly, but my walking world has changed because of socks. I used to wear the thick kind with the sort of a terry cloth texture inside. Then as few weeks ago, I switch to thin smooth socks. I can go so much further without my feet hurting! You would think the thickness of the original socks would be better, but the texture hurt my feet. Who knew socks could be such a big deal! Thought I would share :p