Having a dog in the house, and me not always being very diligent about making sure he has clean paws, can make for a mess on the furniture. My couch in the cave didn't look that bad but I found some slip covers that were very inexpensive and they even had one that would fit the lounge cushion. I didn't bother getting slip covers for the back cushions. Mostly because I didn't want the added expense but also because they are actually attached to the sofa and I didn't know how well the covers would fit on them.
I was happy with how these looked and I think even Gibbs approved. The color is a perfect match to the actual couch.
The best part is that if he gets these too dirty I can pull them off and throw them in the wash. Now I don't need to put the blanket on the end of the one cushion anymore either. I don't know why I ever bothered, because he rarely confined his muddy paws to that part of the couch any way.