Karen Bertelsen usually has her home extensively decked out for the holidays. But this year her decorating plans have gone to the dogs. Well, to one dog: her five-month-old blue standard poodle pup, Lip — short for Phillip, named for the character on the former TV series “Shameless.” With a rambunctious young canine in the house, the former TV personality and DIY blogger (The Art of Doing Stuff ) had to reconsider some of her usual go-to Christmas choices. So this year, Bertelsen opted for a simple, easy decor plan that still makes her heritage home feel plenty festive. “Usually when I do Christmas, it’s a three-day set-up and I…