I love to make these and leave them set up until they lose interest, then just break the boxes down and recycle them...then when another box comes into the house the cats freak out! Any size box works!!
@Savana Drew dude i saw this and i was like omg imma tag sav in this! and then i saw you did the same... and even if we r married (hopefully) we can still get a house like this and we can all live together #fun