How to make sure your shoes fit. (quick version)

Need a quick way to make sure your shoes fit? Take out your insole and place your foot on top of it. Does it fit nicely within the insole? Or do your toes or foot overhang the insole? If it overhangs, this shoe is too small for you!
*Disclaimer: This content is provided for educational purposes and is not intended to be specific medical advice. Please consult a licensed professional to address your personal needs.