I always pull out of my site and then pull over and give a quick recheck of the site to assure I haven't left anything behind. No bottle caps, can tabs, candy wrappers etc. I have never left a site but what it was in as good as or better condition than I found it.
I also do one more walk around check including climbing up the ladder and checking the roof one more time.
You never know when you will find a Frisbie the neighbor's kids "lost".
2002 Fleetwood Storm 30H on Workhorse P32 chassis 8.1 gas.