Hi D.,
How exciting! Absolutely love camping and have been doing it with our daughter (5 years) since she could crawl. Most important advice is make sure you take your Smores mixing - hee hee hee - just kidding - well not really!
Actually - here is what I find most important, multiple change of clothes - expect the unexpected when it comes to temps, getting wet and dirty! Once that sun drops, it is nice to be by the fire but the little ones get cold much faster then me or my husband. And if you are behind a mountain or trees it will drop a lot early then 9pm. Once while my niece was camping with us, she pooped her pants, so had another change of clothes and a run to the shower - oh yeah - bring your own shampoo - if you are in a fully contained RV - great - if not you might want to take a travel toilet (like the ones for the car) so you don't have to go to the public toilet if you get a late night potty request.
Another minor - but my save your RV is if you are taking bottled water where you pull out the tap and the water comes pouring out - teach your little ones how to push it back in before pulling their cup away. I had my 4 year old yelling for help as she couldn't get the water to stop...oh yeah, don't forget an extra towel for big spills.
Sunscreen, Mosquito repellent, Firewood (and newspaper), matches. Keep your meals simple unless you really like to cook and clean up.
We have camping staples:
Pancakes - and I put the bisquick in a tupperware bowl premeasured with enough room to mix in my milk and eggs..don't forget syrup.
Cereal - Kelloggs is no longer making the individual boxes but I think General Mill is...kids love cereal from those boxes...it is so camping.
Hotdogs
Spaghetti
As far as dogs go - mine are expert travelers and campers, so not sure what to tell you. Except - watch both for heat exhaustion because of their short noses. Keep cool water for both and don't leave them in the RV without air conditioning. It is proper dog handling to always have them on leash and don't let them go to other dogs in the park without first talking to the owners, not all camping dogs like other dogs.
This is a memory that will stay with your kids for a life time. Keep smiling even when EVERYTHING is going down hill. It will be a funny story when you get home. Tell your kids over and over again about what you did when you were a kid.
Gotta run the house is starting to wake up.
Have FUN! I'd tell you my favorite local camping spot, but then it would be full.
Positively,
M.
Wife of 15 years to a fantastic camping Englishman and mom to a camping and wildlife champion, 5 year old daughter.