Tape down the wide flap of the box, leaving the other flap free. This is going to be the base of your cave.

Start tearing the paper bag into smaller pieces. If you're like my son, don't forget to act like the Hulk while tearing the bag into smaller bits and pieces!

Crumple up the torn pieces to give them extra texture. This is a great way to work on fine motor skills.

Start taping the paper down.

Slowly cover the box with tape. My son and I got into a nice routine: I'd cut small strips for him, and he'd happily tape and crumple to his heart's content while "Snow Doggy" tried out his new home.

For the front, we stapled the paper on because the staples would be less visible than the tape we were using.

My son then trimmed down loose bits of paper.

Start playing with your new bear cave. (Or in our case, wolf cave.)My son already made a request for us to build another  cave, so that will be a project for another day...