Sentence:  George Barry, the dump's manager, found $8,500 in negotiable securities. He delivered them to the door of the woman who had thrown them out, a kind of reverse <WSD>curb service</WSD>. 
Meaning of the word marked with <WSD> tags:  Convenient pickup of one's items, such as garbage or baggage, from the roadside; convenient delivery of items to the roadside near one's location.