The City of Denver only has 26 street sweepers — which is amazing considering the fact that parking-enforcement officers dole out twenty bazillion tickets every year to the scofflaws who forget to move their cars on street-sweeping days. Wanna beat the odds? Sign up for the city's free Street Sweeping E-minders, which will alert you via e-mail (April through November) the day before your street is swept. It's dirt cheap.