Hubby always 'mocked' my crocks... basically telling me that crocks were a 'crock of #@$%' UNTILL our visit w/ Son, d-i-l, and their new baby boy in Taiwan.  He found that taking off and on his shoes (very expensive shoes recommended by 90% of foot doctors) everytime in/out of the house... became a chore as well as a "pain"!
Our son 'lent' Dad the crocks he always wears; however, the relief and comfort were almost instant!  Dad actually wore those crocks for the entire 3 week visit. Once back in the USA, we ordered two pair and Dad's feet haven't complained yet! And neither did our wallet!!!