What is the possessive noun for London?

What is the postage for a large 9X13 envelope? How many pairs of pajamas should you take for a week? How do you fix a door with a broken handle on the outside but it wont open form the inside? What are the difference between genuine leather and man made leather? Where can one buy full size bunk beds? What does LGL mean in jewelry? What was true about Pullman porters in the 1920s? When was the labergini 2010 invented? Can you put silk in the dryer? Did Amelia have a lucky scarf? How do you clean dusty white marks on black pants? Does poly cotton shirts shrink? Where can you find cute lightweight white sundresses? What does the idiom had it in the bag mean? Do they reuse body bags? Where can you get a backpack purse? What 2 ways did the Inca transport their goods? How do you know if a Louis Vuitton watch is real? What does jlj mean inside a ring? Will the pebble grain leather of a dooney and bourke handbag stand the test of time?