How I made a very inexpensive light box

Ever wondered how professional photographers take pictures with such nice lighting?  They use light boxes or light tents to achieve a soft diffused lighting look.  I decided to make a light box today so I could photograph items for my shop.  I followed the instructions from this link: http://www.digital-photography-school.com/how-to-make-a-inexpensive-light-tent with a few slight modifications.  I used materials I had on hand and bought a poster-board from the local craft store for $0.70.

I started with boxes left over from my Costco trip last weekend and taped them together to look like the cut-out box from the tutorial.
Then I stabilized some of the sections with chopsticks, glued some white paper on the inside, inserted the poster-board, and covered the sides and top with material from old t-shirts.