There are a ton of posts on mice. A few of mine from prior trailers I owned, none from the current one. Try the search function if you have not already.
I think all would agree that prevention of entry is better than catching them after.
My personal preference is the long crawl end to end packing holes with screen wire strips and then go back and foam or silicone it into place. First underneath, then go inside and do the same thing from the inside.
Some places like slides seem to be a highway to heaven. Others have claimed success with bobcat urine and other repellents. You can also bait around tires, stabilizers and the tongue jack.
We had to replace cushions and drapes several years ago.
Now I also use cab fresh inside plus glue traps.
Good Luck.
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2017 SLX 195RB
2021 Jeep Grand Cherokee Summit L 5.7L V8
Andersen WDH hitch, Renogy 100 AH Lithium &
200 Watts solar panels from Renogy
Prev. '14 Jeep Grand Cherokee Overland, gas 3.6 V6
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