milk run

Noun

 * 1) A routine trip, especially one involving several stops
 * 2)  The collection of mixed loads from multiple fixed sources on a regular basis.
 * 3)  An uneventful mission, especially a military sortie completed without incident
 * 4)  A campaign for a political office whose main apparent purpose is to "milk" money from supporters in order to provide a source of income for the candidate, campaign staff, and family members.