I wear canvas-topped rubber-soled slip-on shoes to do DIY and yard work. Almost 2 years ago, I noticed that the soles were separating from the uppers. I could have replaced the shoes for around $20. But instead I spent $1 on a tube of crazy glue and used it to reattach the soles to the uppers. That repair lasted almost 2 years.
I noticed today that the soles were starting to separate again. So I repeated my crazy glue repair. Hopefully, that makes those shoes good for another 2 years and keeps that $20 in my wallet.
:D