The little critters are up everywhere, but before mowing them into oblivion or digging them out, try dandelion syrup.
Take as many heads as are out, add the juice of one lemon and a pint of water per 200 – 300 heads. Adjust as your lawns proliferation of dandelions allows. Boil, simmer for two hours then leave overnight. Strain, add sugar (1/2 pound per pint or more if you have a real sweet tooth) and reduce until syrup.
They may not give many people pleasure in the lawn, but they certainly return a fair sweet syrup for their space in the ground!