ETA: Whaddaya know? She delivers! It may feature the Pattersons and someone I believe to be Uncle Phil (which flushes continuity down the toilet) grousing at each other because they just cannot plan ahead but it does provide the sappy, fridge-quality gather-round-the-Christmas-tree (sorry for the spoiler) punchline that soothes us after yesterday's exercise in negligent parenting.
Panel 1: As I broadly hinted at, it's the Pattersons and their misadventures with getting the tree set up for the year. We lead off with John asking Elly, who's holding a wailing Lizzie if this tree, which is about to fall over on Phil, is the correct one. She cannot decide.
Panel 2: Instead she angrily tells Mike to stop
Panel 3: The predictable-to-anyone-who-isn't-as-God-d
Panel 4: After having gotten everyone rounded up, they pay for the tree. The guy how runs the lot tells them that one with more needles costs extra.
Panel 5: We see an angry John explain that the tree is in the station wagon with them because they forgot the rope.
Panel 6: As they bring the thing into the Pattermanse, Elly yelps that they're getting needles all over the place.
Panel 7: As John puts the tree in its stand he says that every year they go through this.
Panel 8: And every year, it's worth it.
Summary: If they'd have opted for an artificial tree, we'd have had jokes about missing branches, remembering which one goes where and keeping Farley from chawing on them.