I am seeing your posts re: your spider problem. I've been wondering if you (US-ians) don't have an annual treatment of your homes with a chemical repellant for insects??? Maybe this is an Aussie thing? Like, not all homes get them here, but we host internationals who find local wildlife somewhat offputting so we have to, but it's definitely a Thing. I can always tell when the year is up because I will see literally just one and realise that our protection is over. You don't have similar?
We definitely have exterminators who provide chemical treatments here, but you have to seek them out and hire them yourself, and it’s not something everyone opts to do. It also depends on where in America you live too, I think. When I lived in Texas, we had cockroach problems, so we had an exterminator come spray quarterly to keep them away, and most of our neighbors did too, but there aren’t as many bugs where I live now, so it’s usually only something people do if they have a problem, like an ant infestation or termites or something. But it’s definitely something I’m going to look into! I already found an exterminator near us with good reviews, and I plan to bully my husband into calling them for pricing once he gets home, haha.