Once you're home and you can feel the sweat and warmth inside your shoes, take them off one by one and smell them deeply. Stick your nose as far into your shoe as you can and inhale that sweet smell. Think about how long those shoes have been wrapped around your feet all day.
You like that smell, huh? You like sniffing your own sweaty shoes? If not, tough luck. Force yourself to like it. Grab your cock and jerk off while you smell your shoes. I want you doing this and enjoying it every time you come home from now on. I want you thinking all day about coming home and finally getting to smell your shoes. You're going to have a serious fetish for your own feet and shoes, if you don't already.
Don't be afraid to stick your tongue out and lick up some of that sweat while you're sniffing. Bonus points if you can reach the sole on the inside. Now set your shoes aside and give your socks the same treatment. Slide them off one by one and shove your nose into them. Smell your own dirty, sweaty, disgusting socks. If you wore a really old, dirty pair they should smell pretty intense. Not bad; none of this smells bad to you. You love the smell of your shoes, your socks and your feet. The sweatier they are, the less you can resist sticking your nose in them. And that's what you're going to do every fucking day from now on.