The virus can live for 72 hours on hard surfaces, shopping carts, credit card machine, credit card, gas pump, door knobs, computer mouse. You are shopping, you touch your cell phone, now your phone potentially has the virus. You wash your hands after shopping, but not before touching your phone or your car door....Not true.
You're not going to get or give the virus unless you are within 6' of someone that has expelled aerosolized fluids or you aren't washing your hands.
If most, not all, but most of us shelter in place that works fine. The objective is not to stop everyone from getting it the objective is to reduce the rate of infection over a longer time. Shelter in place reduces the number of people in ICUs at one time and that is the ONLY thing that is going to save lives.
Unless they get a vaccine.
In fact without a vaccine, some percentage of us are going to get it sooner or later. Most of us aren't going to be bothered by it severely. All we can do is to reduce the rate at which it develops so as to allow the ICUs to keep from being overloaded.