Outside the RV just now I have:
The necessary hoses and power cords
A Modem atop a flagpole that connects me to the park Wi-Fi (I am way out of range w/o the flagpole).
A single long wire, held up by two fishing poles (My primary ham radio antenna)
1 chair
1 car
1 collapsible ladder, collappssed and upside down so it does not soak up rain, I had to do some maintenance this trip.
I do not put mats on grass EVER, I do on gravel or other man made surfaces burt never on grass.
Oh I did hang a sign on the side with a couple of solar light bulbs and a bird feeder,,, THe bird feeder is known as "The Feline Entainerment System" It hangs outside a window the cats like to lie in. The sign "The cat and his housekeeping staff live here".