That's easy, cases of Bravery® are always found in the same drawer as the checkbook used to buy the trailer...
One slick way to 'bleach' the entire interior is rent an ozone 'bazooka', place it in trailer on a timer
, have a couple of small fans running in trailer, open all the cabinets and hidden areas... and plug it all in from outside the trailer. The same high-voltage electrical energy that boosts the oxygen energy to bind together three atoms instead of two then gets the extra oxygen atom welded out on whatever the ozone bumps into, so make darn sure its not your lungs. Ozone will actually brighten and clean fabrics, etc., right up to the point they dissolve into dust from accelerated aging.
Ozone might really really help with a faint background mousey odor but remember its also 'erasing' other nicer odors (summer camp, old cosmetics, furniture polish, cooking spices, $10 worth of patcholi & jasmine incense, et al) that might be mostly masking something worse... just saying, bravery only goes so far ..