How do you clean your carpets?

Do you rent a machine? I’ve never rented. I used to own a Bissell upright carpet cleaner, I don’t remember what happened to it. I still have a Bissell spot cleaner, and I use that to clean my carpets, which is sort of ridiculous for large areas, but I do it haphazardly about once a year, concentrating mostly on stained areas, but still all over.

My carpets look good, not perfectly new though. High traffic areas look slightly warn.

Do you pay a service? Rent a machine? Have your own machine? Do you think about other people’s dirt and germs in the rented machines or cleaning companies that go house to house?