Dance is the Poetry of the Foot

John Dryden, 17th century English poet, said the above.
Trained Ballroom dancers are as specific as ballet dancers in how to use the foot. We should do the strengthening exercises as they do in ballet training classes, but just some awareness of your feet can start anywhere.
Slip your feet out of those shoes to wiggle them around, point and flex, find the power point in the ball of the foot, and just realize that moving across space depends on these, your fabulous tools.
Next time you're dancing, you may remember to feel how well they can work.