Years ago I used a travel trailer for housing in a couple of NPS jobs. Remembering to get all of the steps taken care of before moving it was so important. At least it had a jack on the hitch to make keeping it level and hook up easier. I kept a padlock on the jack end so someone would be less likely to back up to it to steal it. On your trailer if the hitch end was on the ground it's a default security setup (unless some beefy guy comes along and just lifts it).
That reminds me that I have a jack stand in the garage and I can't remember what I was using it for. Something else to donate.
Motorhomes and travel trailers are a lot like cabin cruiser boats - efficient storage tucked into lots of places. A friend had an Alaskan camper on her pickup truck, and one day she was going through all of the storage places to find a smell. She finally turned up a bag of rotten tomatoes tucked into one of the big locking drawers that opened from outside on the back.
Lots of stuff has to be finished this month but the online defensive driving course is on the top of my list.