askchapo

For the air filters, the lowest cost but least effective is to literally just tape a square/rectangular filter to the intake of the fan, turn it up a notch, and put it in the room you spend the most time in or that gets the worst of it.

More effective is setting up a Corsi-Rosenthal box with the fan, a few filters, and some duct tape.

After that, you can buy something like a cheap a Levoit purifier with the smoke filters. Sorry for Amazon link. I use one of these though and turn it up to high on days when the smoke is bad, but just run it 24/7 on low otherwise.

For real big ones, you usually need to mount them in the window and have large ducts/block off the rest of the window, etc. They're way more expensive and complicated/limiting. More effective too, but only marginally so over something like the Corsi unless you live in a very large space.

For hair in the drain, a dollar drain catch like this is great.

The liquid plumber stuff can eat through older pipes, so depending on where you're moving to it might be better to invest in one of these:

I got a Winix air purifier and am very happy with it. ~$100+ for a "luxury" (health) item though

Stainless steel for cookware is the way to go

Lotion, keep your skin hydrated

If you own a car, one of those "jumper pumper" battery packs is a game changer. Can charge or power household items during power outages, is great for camping, and can jump start a battery or pump a flat tire. Around $100 at Costco

Edit: and yes, a robo vacuum is a game changer. I also got an electric mop (still gotta hand push it, but it has rotating heads and a sprayer) and it makes mopping a lot less miserable