I have to admit, my carpet is pretty filthy. Between the dog, and my greasy trips from the garage to the kitchen or shower it's getting on my nerves, and the house is only 1 year old. So what do you guys use? I have a bissel carpet cleaning machine I bought, but it does a better job at making the carpet soaking wet than it does cleaning it. Should I just invest in a professional cleaning van to come by, maybe do it once a year or 8 months? is there maybe something better I can do it with? It's not stained or anything, just grime in the traffic areas, doesn't help that the carpet is a light tan color I guess.