After a day on your feet, sit down and roll The Purple Podor small rubber ball under the entire surface of the foot including the heel, arch and toes.
Roll it back and forth using mild pressure.
You can also work your feet manually: sit with one foot across your other knee. Grasp each toe, rotate a few times clockwise and counterclockwise. Bend each toe forward and back, then pull out gently on each toe.
Use both hands to grasp firmly on either side of the foot and wiggle hands back and forth, jiggling your foot between them. Use your fist-gently in the arch of your foot, turn your fist in half circles back and forth.