How can I get the dirt out of the couch?
Try a microfiber cloth, barely damp. Or search on this site because there was an earlier post on this topic.
Here's some helpful hints--a few different products to try!
hometalk has some stain removal ideas:
Start with microfiber and water. Add blue Dawn to water if needed. For deep stains, use this mattress stain removal method.
i have a beige couch and i use regular Woolite in warm water. Rinse it with clear warm water and a white towel.
Here is a good video to help you