While we are sharing tips, I will share my routine here in case it's helpful to anyone who wants to be scrupulous about avoiding getting infected while making trips to the grocery store.
I keep a bottle of purell hidden at my passenger side door of my car, so that after the groceries are put in the trunk, I can then go around and get a drop and disinfect my hands before going around to my driver side door and using the steering wheel etc inside. This prevents me from contaminating my car surfaces if I picked up anything from the time I threw out my glove to the time I finished loading the groceries and then returned the shopping cart and threw out the glove from my other hand. My glove usage is very precise and I am careful with it to not touch things with the ungloved hand, so I doubt I will pick up anything on my bare hands, but for people who are less careful about shopping with gloves, the purell at passenger side door is a very good strategy to disinfect a clean slate for your hands before getting into the car and driving off. This way you always clean off anything picked up from the store as a quick reset before getting in the car and before touching your face at all without thinking about it while driving. (And also not contaminating your steering wheel etc).
(For those wondering about glove use, the time I first remove the glove from my left hand is when I'm paying and I'm about to dip into my pocket to pull my credit card - From that point forward all steering of shopping cart or touching of touch screen at selfcheckout is done with my remaining gloved hand. I do this one-glove removal to avoid contaminating inside my pants pockets and avoid contaminating my credit card). The only thing I touch with non-gloved hand is the plastic bags where I place the scanned items, and then when I grab the bag handles and put them in the trunk. The reason I don't use the gloved hand on them is because if I do, that is only going to put all the germs from the store, touch screens etc, onto the bag handles, and I have to carry them up to my apartment without gloves anyway. If money wasn't tight I'd have tons of boxes of gloves in surplus so that I could put on a new pair from the car, to carry the bags up to my place. As it is, I bring up barehanded, put the bags in a pile outside my door, pull items out one by one and wipe them down with lysol wipe, bring them inside, then pile up all the plastic bags carefully and shmush them and then bring inside to trash bin. I try not to create a ruckus with the plastic bag shmushing because if there is virus on the surface of them, you could aerosolize it into the air or into your face God forbid.
Then after placing them in the garbage bin, I then wash my hands with soap, then preheat my oven to 180 degrees Fahrenheit, then remove my mask from the straps at the back into the same foil tray I use every day for my mask decontamination procedure. Careful not to touch front of the mask while taking it off and careful not to get face contaminated, just drop it straight in the disposable foil pan. The oven is quickly preheated in a minute or two to 180 degrees, then I put the foil pan (with mask inside) into the oven for 10 or 15 minutes. At that temperature it will denature the protein coat of any coronaviruses that got absorbed on the mask and effectively kill them. Whatever is there will no longer be capable of infecting. (Ie, no longer "live virus."). It will just be pieces of viral RNA and smashed up destroyed protein coat that can each no longer infect cells.
Then I wash my hands with soap again while waiting for the 10 or 15 minutes. When it's done the mask is decontaminated and ready for next use.
The bottle of purell on my passenger side front door is hidden inside an empty box so that no one will break into my car at night to steal the purell, since it's not visible through the car window and no one will know it's there. You can't be leaving purell, toilet paper, or lysol wipes out in the open these days. They used to bust into the car and steal the radio, now I think they will steal your hand sanitizer