Thank you all for your replies and suggestions. What a difference a day makes!
I combined a number of ideas. I cut myself some slack. I'm a newbie and I need time to catch up to everyone else's mistakes. Next, I stopped trying to eat the elephant in a single bite.
I can see that my shaky start to this season actually began last season when I didn't take the extra 3 seconds to put an object back where it belongs instead of shoving it any old place, 'because I'm in a hurry'.
I created space for hitch hardware by folding and storing the trailer cover, which wasn't as difficult as I thought it would be. I cleaned and bleached the fridge & freezer which was time consuming but, once again, not as bad as I thought. I was then able to store the cooler in the neatly-organized truck bed, creating more organization inside.
After that it was mostly opening cupboards and getting things organized... again.
I REALLY like the lists idea. I'm going to print them and have them laminated. I've been settling in and staying a month at each Park. At the end of the month, I struggle to get packed up and ready to pull out, in under three hours. I'm positive that using an organized list will eliminate me going round the trailer forty-eleven times, then circling back.
And thanks to Yeti plus for the laugh... "I woke up this morning with nothing to do, and I only got it half done by bedtime." Please consider that line officially stolen, my friend!!