to follow on sb's heels

to lift one's heels; to stand on tiptoe; (sports) to do a calf raise

(literary) in an instant (lit. to turn on one's heel)

to stand on tiptoe and crane one's neck (idiom); fig. to yearn for sth

to come one after the other

lit. rubbing shoulders and following in each other's footsteps; a thronging crowd

to rub one's head and heels (idiom); to slave for the benefit of others; to wear oneself out for the general good

trouble is never far away (idiom)