From the Lawrence Daily Journal-World for April 3, 1972:

On the first day of the new citywide trash pick-up policy, most Lawrence residents had remembered to put their garbage containers at the curb. According to sanitation department head Don Purdy, the new system, designed to save the city $60,000 a year, was also saving time; however, a valid evaluation would not be attempted for at least a month. City ordinances did not require that residents remove their empty trash cans from the curb by a specific time, but a pamphlet on the new policy said that city administration was “confident that the people of Lawrence have sufficient pride in their homes and the appearance of their neighborhoods that they will take their containers in from the curb promptly after the collector has passed.” In case homeowners had forgotten to do so, high winds this week were helping to remind them by blowing the empty cans around in the streets. Lawrence trash collection occurred twice weekly in 1972, with a bulk item pick-up once every five weeks.