Well, now-----geat advice from all who have responded. Just this morning I have been cleaning out my cupboards, removing all the 'extras' I haven't used in the four years I have been camping, including some boondocking stints. I don't live in my trailer, yet, but pretty much do for the summers.
This morning, I am eliminating about 40 hundred extra mugs, glasses, plates, and so on, 'for the 'company' who never has shown up in all those years! I have saved about 4 of everything, in case, as Ava said, "somebody might visit me!' I do have one friend who always camps with me the first week in August at the VT Bluegrass festival for 5 days of boondocking in an open field. We always have way more than enough 'stuff' to last us for about a month, if we needed it!
I always, too, pack way more than enough clothes and cheap croc-take-off shoes. Undies are important, and I forgot those this year on my first campout! I had to go to Walmart and buy me some new ones! From now on, I will keep essentials in here all summer!
I use my microwave almost exclusively for cooking, as I HATE to cook. But I do have a 3-burner gas stove with an oven, should I ever get inspired. I toast my bread on a stove-top toaster which works fast and very well. I kept a small food processor in here in case I might want to make a dip of some sort, or chop ice for drinks. I have a stainless steel coffee percolator (stove top type) which I use to boil water to use my single drip coffee mug thing. I still need to tackle my pots and pans cupboard to see what can be eliminated from there, too.
As I don't live in here permanently yet, I haven't made permanent preparations for TV, internet access, or mail. It's interesting for me to read about those options for the future.
I keep first aid supplies, a few cosmetics, toilet paper, paper towels, real towels, and kleenex. Also as many tools as I can fit boh in here and in the basement section outside! I usually pack a ladder in the bed of the pickup, as it would take up too much space in here. I did need it once when my awning doohickey got jammed.
Rain gear of all sorts is imperative, as are jackets. I also pack an el-cheapo screen room to make more outside space that is sort-of protected.
My most despised chore related to RVing is dumping black tank! I am sure nobody loves this chore! While camped here in my own yard, I just use a pee bucket and empty it inside every day. I do use water for dishwashing and tooth brushing, etc., and just let the grey water run onto my lawn. I hope I will get more used to dumping procedures as I get more experience. ACK!!!
Don't forget to pack electrical connection adapters, in case some campground only has a certain configuration for hooking up power. I also pack a heavy-duty RV extension cord and exra sewer hose and adapters and connections, as I have been just short of being able to use the sewer facilities in some campgrounds.
Interesting thread you all have started here.