door-step lending
n.— «Again it is the current state of the economy that is to blame—a drying of liquidity has seen a reduction in sub-prime lending, often known as “door-step lending.”» —“Lloyds insurance warns on rogue trading” Economy News (United Kingdom) May 27, 2009. (source: Double-Tongued Dictionary)
Further reading
Paul in Batavia, New York, recommends The Door-to-Door Bookstore (Bookshop|Amazon), a novel by Carston Henn, translated from German by Melody Shaw, which includes a wonderful description of a book with a perfect final paragraph that you nevertheless...
Emily in San Diego, California, wonders about the phrase to dog, meaning “to close and secure” as in to dog a door. In a nautical context, the phrase dog the hatches means to secure them with a bolt or handle designed for that purpose...