@Poster
Your car interior looks clean. Remember, the best way to keep your cars' interior clean all the time is ... to ensure you don't make it dirty! It means you follow basic do's and don'ts!
DOs
1. Do clean the interior frequently. If it's a personal ride, clean it once in a month. If it's a family ride, once in a fortnight.
2. Do use vacuum cleaner every time you clean the interior.
3. Do use genuine products. No desi totkas will last the cleanliness and will spoil the stuff in the long run.
4. Do pay attention to minute details like nooks and corners hard to access, at least once in every second exercise.
DON'Ts
1. Don't allow eating and drinking inside car.
2. Don't allow VERY dirty shoes.
3. Don't drive your car in dust and behind heavy traffic with open windows.
4. Don't drive your car with the vent of air blower/AC opened. It invites fine dust inside which can't be removed easily.
5. Don't use that cheap luster on plastic trim EVER!
If you follow these steps, your ride's interior will remain cleanest always. It has been almost 4 years that I'm driving my ride following these DOs and DON'Ts, and believe you me, my ride's interior is as clean as it was on the first day I drove it out of the showroom!! (H)