Opening mail - business as usual
Opening packages - business as usual
There are few if any recorded cases of transmission by touch outside a hospital environment, it's not that contagious, that is, you need a viral load, not just a single virus, and paper is absorbent, anything on the surface will sink into the paper/cardboard, so it has to be a sizeable droplet(s) then you have to touch it while it's still contagious, then touch your mouth/nose/eyes. Long odds.
Distancing from relatives who you trust but don't live with you - yes
Convening outdoors at picnics or restaurants - outdoors with distancing and masks
Eating indoors at properly distanced tables in restaurants - no, only exception would be facility with high ceilings, good ventilation, proper distancing and everyone wearing masks, good luck finding that place.
Driving with friends or relatives who you trust to be cautious - still keep my distance, only with a mask and for only a few minutes
Flying - no way until they throw the guy who takes his mask off out the door at 30,000 feet!
Working in a properly-spaced office - No
Associating with a relative who works in retail or another risky profession - with distance and mask
Grocery shopping - yes, I reserve my N95 (old paint mask past expiration date for health workers) for Giant, Costco, etc. If it's a quick in and out, use my cloth mask, but if I'm spending an hour indoors, only the best.
Going to the dentist or hairdresser/barber - maybe, if they take proper precautions.