[JRTJH]

With the population explosion in the "mouse community" (they're immune to COVID) it's a good idea to spend an afternoon on a creeper under your trailer with a can of expanding foam in your hand.... Hit the "obvious spots" first and if you have any left in the can, then start poking around in the "not so obvious spots" and even in the "what the heck spots"....

I haven't been under a trailer in the past few years that would have leftovers from a can of foam.....