I shop online a lot and we are now having our groceries delivered, so we sanitize everything that comes through the front door. My worry is that as more demand is put on delivery services and there are fewer people to operate them, some staff - pickers, packers or delivery drivers etc (especially those on zero hours contracts) may continue to work if they become ill, thus contaminating what they handle. So better to clean everything that comes into your home. Better safe than sorry.