If you're on top of it, you can head it off by applying a pre-emergent herbicide, like team or gallery, to lawn and turf areas for season long control.
Where dandelions poke through concrete and every other place you'd never think a weed could grow, spray with a mild solution of a glyphosate.
And when your garden gets inundated which dandelions, why not cultivate it as an edible food crop.
Dandelions have been a staple in French cuisine for years. They have a nutty flavor that greens add to any salad and sautéed roots are a delicacy.
Just don't let your dandelions flower, otherwise they will turn bitter.