Agree with Damaged, if you feed the grass, it will help keep the weeds at bay. I do early season and late season fertilizer applications, before the weeds start growing, and after they have more or less stopped.
I finally put the snow thrower in the shed, usually wait until the first weekend in May. Turned into a really nice day in the lower valley, cleaned the garage and washed 2 cars including my daily driver antique Honda, which came out nice: