If the inner heel of your shoes keeps shredding long before the soles wear out, a simple repair trick could help you get much more life out of them. According to shoe-savvy Redditors, stick-on heel patches by themselves usually aren't enough — without an extra layer, the fix may fail quickly. The scoop "Consistently my shoes wear out like this before anything else. I bought some sticky patches to try and repair them but realised I have no idea h…