Over time, your home's carpet can become dirty and dingy. Although you could hire a professional carpet cleaning service, these companies often charge high rates. If you need to stick to a budget, you should clean your own carpet using a carpet cleaner. Although buying a carpet cleaning machine is not cheap, there are ways to save on this valuable piece of equipment.Borrow A Carpet Cleaner From A FriendThe cheapest way to get your carpets cleaned is to borrow a carpet cleaning machine from a friend who already owns one. Even if you do not think that you have a friend who owns a carpet cleaner, you can use your social media accounts to ask if any of your local friends do own one of these machines. If you do borrow a carpet cleaner from a friend, make sure that you take care of their equipment and that you return the carpet cleaner as soon as you are done with it. That way, your friend will not hesitate to lend you their carpet cleaner again in the future.Rent A Carpet CleanerRenting a Bisell carpet cleaner is one way to save money. Many home improvement stores have equipment to rent, and often have carpet cleaning units available. You might have to call around to several stores before you find one that rents carpet cleaners. Usually, carpet cleaning rental rates are affordable but you might be required to provide a credit card and leave a deposit.Look For Bargains OnlineIf you want to buy your own carpet cleaner, you will get the best price if you shop online. Give yourself plenty of time to shop for carpet cleaner bargains. You might need to wait a few weeks until the model you want goes on sale. If you buy a carpet cleaner online, make sure that you factor in the shipping costs. If you have to pay a high shipping price, your online bargain might not be such a great deal after all.Buy A Used Carpet CleanerAnother way to save money on a carpet cleaner is to buy a used machine. Check local classified ads, both in your local paper and online. If you buy locally, you will be able to inspect the machine before use. The seller should let you try the unit out before you agree to make your purchase.