Feet, ankles, and calves need attention.

Step 1
Flex: bring your toes towards the shin of the same leg
Step 2
Point/extend: bring your toes towards the heel of the same foot
Step 3
Rotate: circle your ankle both directions, slow and fast, small and easy then with full flexion and full extension.

Do often and everywhere.  Improvise timing and detail — crunch your toes or extend them long.

This will warm up your calves, get your ankle joints lubricated, and help keep what you stand on prepared.  Of course if you’re looking for extra strength, (or a good and cheap insurance against ankle sprain), do exactly the same exercise using the resistance of a theraband — or any elasticized cloth.

After twenty or so years of this, a change of scenery, some imagery, is wanted.

Please note, the above text and this video is only an exercise in what it is to exercise, or, what an exercise is, and does not express the full range of point, flex, or rotate.

Prepare your feet before moving.
Soothe your feet after moving.

Step 1
Purchase some rubber balls at any 99 cent store. These are some of my favorites:

99 cent balls

Step 2
Squeeze with your toes, curl your arch, then step, squish, let your weight go.  Roll slowly.  Find all of the pressure points.  Let time stretch out.

Please note, the above text and the below video is only an exercise in what an exercise is, and does not express the full range of possibility of these balls and a foot.

Step 3
Release your sole to the floor and walk, stand, or leap with more supple grounded grace.

More than thirty minutes each foot is not recommended