Right now, I’m leaving all boxes on the front porch, and that’s where I open them.
I try to wait at least a day, but If it’s something I need soon, I spray the box with Lysol and leave it a few hours. Then I come back with mask and gloves, open and wipe the contents with bleach wipes. I let it sit for around 30 minutes then bring them inside.
If it’s something that can wait, I just push it with my foot to the end of the porch and cover with a tarp and open it after a week or so.
We’ve been spraying them down, letting them dry in the sun and then putting them in the garage to ‘age’ for a week or 10 days.