I finally got around to taking some pictures of what we keep under the seats in the trailer.
Here is a basic list with more details here: http://oliver.hewus.com/Trailer/What_we_carry
First aid kit[/list:u]
Toolbag and other tools[/list:u]
WD-40[/list:u]
Duct Tape[/list:u]
Tarp[/list:u]
Soaps and other cleaning supplies[/list:u]
Plastic bags, aluminium foil, plastic wrap[/list:u]
Towels, hand towels and body towels[/list:u]
One of these days I may quit slacking and take pictures of what is in the overhead compartments.