Be aware of who is around you, in the store or any place public. If you are speaking to a friend, and share information about your husband's passing, someone might be listening.

When you take your car in for servicing, remove the registration and insurance documents from the glove box, plus any other personal identifiers. Give only your car key to the service department.

The first thing to do when you get in your car is to lock the car doors. Likewise, when you unlock your car, open only the driver's door, not all the doors.

Remove all throw rugs in your house if possible, to help prevent slips or falls. Use small nightlights at key spots, like bathroom near the floor, kitchen counter, near the doors. Do you have pets? Make sure you collect/pick up their toys each night before bed, so you don't trip over them.

My father lived in a senior apartment complex. He raised the American flag each day. If it was not up, someone would check on him. Likewise he had severe hearing loss, and could not hear a smoke alarm. They installed a flashing light to indicate the smoke alarm after he burned toast and never heard a thing. The manager used master key to get in and make sure he was okay.
Ginger