Absolutely. I'm reminded of the Japanese football fans in the Russia World Cup who would tidy up the stadium after their games, win, draw or lose. The stadia were left in a better state than they were found. I'm no angel in this area, but usually in the "20 minutes to landing" announcement I can get myself sorted in a few minutes, that gives plenty of time to tidy up the CW seat area with a mindset of "what would be the best way to leave this seat so that the cleaners can do their job efficiently". Typically that mean having a quick scoot around and picking up any débris, with a view to leaving the seat slightly tidier than when I boarded.