I bought my Kodiak Cub in December and moved necessities from my old one.
Bottle Jack and wheel lug wrench
Wood Blocks because the jack needs a lift and cushion where it contacts the frame.
More wood blocks for winter or soft ground pads for wheels and jacks. You can leave a wood block frozen to the ground, but not your leveling jacks. I use pieces of 2X10 boards.
Wheel chocks or duel axle locks.
Left to right leveling system. I use 2X10 boards.
Tool box with specific tools used with the trailer:
Screw driver with special end. All my TT screws are square drive
Socket and extension for hot water tank drain plug.
Wrench for propane tank if you don't have the large hand nuts.
Other typical small hand tools.
Bubble level for leveling the TT
Battery drill with socket to raise and lower stabilizer jacks.
Strap on carpet for entry stair tread.
Ground pad for in front of door. (sometimes called a patio)
Whisk broom and old towel to clean ground contact things.
Tire gage, greater than 50 pounds.
hose with 90 degree fitting on one end
rubber gloves, disposable
storage container for hose. I use a rubber tube with tight fitting cover.
Foot attachment for front tong jack. (Kodiak was too tight to put one on mine.)
4X6 block for under the tong jack to reduce the amount of screwing needed to attach the load leveler hitch.
Black water tank treatment to reduce smell and digest toilet tissue.
Fresh water filter that fits lawn faucet fittings for water hook up or filling water tank at low quality water sources.
Potable water hose with lawn faucet fitting.
No additives bleach to purify water, water tank, pipes, and hoses. Two table spoons per 10 gallons for one hour or more.
RV toilet tissue
All the kitchen, bath, and bed things you use at home:
Corel brand dishes works great. Thin mesh rubber sheets to make pads for between stacked items.
Stove Top Coffee Pot, from camping store because we don't usually plug in.
Larger AGM or GEL deep draw type battery for boondocking. Two larger batteries for winter camping. The furnace fan uses a lot of battery power.
Battery operated trouble light for emergency repair lighting.
Finish the inside of the cabin:
Kodiak used rough cut and finished, chip core panels for dinette storage covers and under the mattress.
Some of the boxes above the window blinds were not well attached. Attach them better before they separate and cause more damage. The same with some other things being loose or inadequately attached.
Several gallons of RV antifreeze (Get propylene glycol type. Alcohol type tastes awful even after flushing.)
Water heater bypass kit and antifreeze suction hose if not already installed.
Improve access to bypass valves. Kodiak put mine inside blind cabinet spaces requiring 10 square drive screws be removed and replaced.
Test your TT systems for freezing weather in your driveway. "Four Season Package" means summer season, baseball season, summer vacation season, strawberry picking season, and vegetable growing season.