In the image below, boxes, furniture, pets, and other belongings clutter the room so thoroughly that you can’t even see the parquet floor—except for one small piece. According to Luxury Flooring & Furnishings, the company that created the puzzle, only 5 percent of participants were able to spot that piece in under a minute. A few huge IKEA shopping bags can solve the problem of how to pack items that don’t fit neatly in boxes; and using trash bags as garment bags will save you from having to remove all your hanging clothes from their hangers.