Keep the inside of your car clean. Although you may believe this isn't important, it is.
If the inside is really cluttered and dirty, then you could damage your car's chassis. https://www.webwiki.de/auto-works.cc/%D8%AA%D9%88%D9%8A%D9%88-%D8%AA%D9%88%D9%8A%D9%88-285-45-22-285-45-22