It's easy keeping 2 clean when 1 sits in the garage 99% of the time. I clean it maybe once a year.
The other is easy as long as your passengers know the rules. My son and wife both know there's no food or drink allowed and since we have a dog no clothing with fur on it in the car. They either get changed or use a lint roller before we go out. Yes I have OCD.
2009.5 SBM GT: Lots of show with some go.
The garage queen.
2008 IOM GT: Some go, working on the show.
The daily driver.
2004 Blazer Xtreme: Lots of go.
Sold and will be missed.