Americans are expected to spend $143.6 billion on their pets by the end of 2023, according to the American Pet Products Association. Meanwhile, 89% of pet owners say they are going to dig into their pocketbooks to maximize the best friend’s holiday joy. Here are five furry holiday spending trends in this week’s Five For Friday. #5: Clothing Two-thirds of American households own pets and a third of them will buy holiday clothing for those pets, according to SoFi. The most popular clothes are holiday sweaters, followed by collars, harnesses and hats. That’s not even accounting for holiday costumes, but…