Is this the 16' Scamp
listed on your profile / what plan is it? Or is it a 13?
Since space is so limited, it often boils down to deciding what's a really priority to bring at all, and also what's a priority to keep inside the trailer cabin.
We keep jackets and outwear in the tow vehicle so they go with us when we take day trips. Same goes for bicycle helmets, snorkel gear, hiking shoes, etc.
We pack a lot of layers; silk and poly long underwear, knit shirts, light
sweater, wind/rain shell, etc. That makes the clothing much more versatile for wearing in different weather conditions.
When we had the Casita
we used soft, "mashable" duffle bags for personal gear that stored under the dinette / bed area. I retrieved them from under the bed with a broomstick with a little hook in the end.
Outdoor chairs rode on the bed during travel and were taken out of the trailer on arrival. A canopy and outdoor stove rode on the floor and were likewise taken out of the trailer on arrival.
I really liked getting the A-frame storage box on the Escape
as that allowed me to take some things out of both the trailer and the tow vehicle, particularly a doormat, towing gear, blocks and chocks.
It all seems to be a constant process of readjustment. Now that we have a relatively large trailer with much more storage space, we have worked (successfully so far!) to keep the storage cabinets lightly loaded so that they don't fill up with extra stuff and make fetching things out of storage a nuisance.
Everytime some new addition to the kitchen gear is proposed, I ask if it can perform three
tasks. Other items earn a place by being "special", such as snorkeling gear when we are going to certain destinations. That same mindset is also applied to clothing and other gear and helps to reduce the sheer number and volume of things we bring along.
We also use cardboard boxes as "drawers" in some kitchen cabinets. That way we can load them up, pull the box out of the cabinet, and readily get at what we want. Over time, we modify these; using cardboard means they are cheap, flexible and the arrangements are readily modified. Other folks like using plastic storage bins under the bed, in tall cabinets, etc.