.
.. maybe you just need new shoes/boots?
I don't get smelly feet... I don't sweat often though either, even while doing hard physical labour, so I think that's why I don't smell.
I had smelly feet once when I was 11, but it was because of these stupid sneakers my mom bought that had a bubblegum smell... after a couple months, bubblegum that's been dragged through puddles, mud, dirt, dog crap, etc and stomped on by little feet transforms into an absolutely disgusting smell. It's no wonder there are no bubblegum smelling shoes like that around today