I say read a lot of the research and then think quite a bit for yourself.
What I do is let anything that doesn’t need to be refrigerated to sit for 3–4 days in my foyer. I bring it in the house, wash my hands and ignore the new package. Then, 4 days later, I feel it’s safe to touch. You could additionally wipe it down with disinfectant if you want. I do this with my mail, I put it in a paper shopping bag then let it sit for 4 days before I read it. I only pick up my mail on Sunday so it hasn’t been touched for a day already.
When I lift a package, if I need to hold it against my body, I take off my shirt immediately after while wearing a mask so the shirt doesn’t touch my nose or mouth. I’m starting to think the next time I shop for clothing I’m buying some button down or zipper shirts.
I’m no expert, I’m just telling you what I do. I try to use less disinfectant if possible. That’s why I use time to disinfect things when I can. Some people put items in direct sunlight, but you’re very north, so that’s probably out.