I once had a friend who rented an apartment with a yellow carpet in it. Knowing that he might move out from it at any time, he purchased a small vacuum cleaner that lasted him for a while. The vacuum cleaner seemed to be totally ineffective for cleaning the yellow carpet. My friend really wished he had known about a better way to clean this carpet at that time. He wasted so much of his precious time on something that could have been done differently.
If you do not feel like cleaning your carpets on your own, you can always consider hiring somebody offering carpet cleaning. I know that asking somebody for help should not be that difficult. Many people are willing to clean carpets, because they have the right tools to be able to do it. An average homeowner might not have the right tools to be able to clean any carpet. Some carpets are harder to clean than other carpets are. Bright colors such as white or yellow require special care. This is why it is important to take care of carpets on a regular basis, especially if the carpets happen to be bright. If your carpet is getting darker with each passing day, it is a good idea to do something about it before it is already too late. Otherwise it might be a lot more difficult to clean it later.