End shoe odor for $2...

Get yourself a spray bottle and 70% isopropyl alcohol from any dollar store.

Before you put your shoes on, spray into the shoes to coat the inside, and then put them on. It will be slightly moist for a little while, but it’s a small price to pay for an odor-free day. The alcohol creates an anti-bacterial environment for your shoes, socks and feet.

You’re welcome.