With every surface already packed full of merchandise, taking care of the collection has now become a full-time occupation. (Photo: AFP/Daniel Leal-Olivas) The “loyalist royalist” has been collecting souvenirs for four decades, amassing over 10,000 mugs, life-size cutouts, effigies, tapestries, books, posters, toilet seats, nodding corgis, tea-sets, and countless other nick-nacks in her London home. With Prince Harry’s wedding to former US actress Meghan Markle and another baby for Prince William and his wife Kate on the horizon, Tyler is having to find more space for the glut of new merchandise. (Photo: AFP/Daniel Leal-Olivas) But with Prince Harry’s wedding to former US actress Meghan Markle and another baby for Prince William and his wife Kate on the horizon, Tyler is having to find more space for the glut of new merchandise, including plates, tea-towels and cups. “I can’t resist it,” the 74-year-old told AFP. The so-called “Heritage House” also doubles as a B&B for royal enthusiasts looking for a quirky place to stay, with some even mistaking it for a museum. “A lady knocked on my door the other day and said ‘what time do you open?’.” The so-called “Heritage House” also doubles as a B&B for royal enthusiasts looking…