I've recently rearranged my living room, and in the process, I wanted to improve several things. I wanted to cover the old worn second-hand ottoman I have, and I wanted to be able to use the coffee table as an ottoman as well. I found a large tablecloth at Big Lots for $5, and used it for materials:

I had an old padded mattress cover I never use, so I cut it into rectangles that would fit the top of my coffee table:
I sewed the layers together:

I used a piece of the table cloth to cover it. It makes propping your feet on the table much more comfortable:

I used the same fabric to cover the ottoman, so it would match:
The Fireplace:
When I moved my furniture, the ugly fireplace was no longer hidden by my entertainment center. It's ugly gold bricks with mismatched brick in the center, and ugly tiles. I rent and have been forbidden to paint this monstrosity. I was inspired by this idea of using foam core and wallpaper:
http://www.designspongeonline.com/2008/05/diy-project-kates-wallpaper-fireplace.htmlI already had a lot of leftover vinyl wallpaper, but foam core, this much of it was too pricey for me. Instead, I used tri-fold project boards made of cardboard; the type you use for a science fair project presentation.
Before:

Closeup of the ugly bricks and tile:

Putting up the cardboard:

With all cardboard up; it was white on one side, and I didn't keep it all turned the same way.
Here it is with all cardboard up:

And here it is covered in white wallpaper.

I'll add a close-up of it finished later, etc, after I've neatened the edges. I also plan to put candles or something in the center.
I used clear packing tape to attach the cardboard to the fireplace, and to attach the pieces of cardboard to one another as well. I also used the tape to adhere the wallpaper to the cardboard.