Yes, after all the toys, beds, and cat trees...it's this silly cardboard box that she loves the best.
Oh,yes,I can relate! We make sure we bring a cardboard box from the supermarket when we go shopping. Then it lay around for a couple days for kitty enjoyment

In the last picture, I think, she is giving you a bad look:"Me chinese food? What are you thinking!? Instead bring on some shrimps! "