Checking in on my 96-year old grandmother

My grandmother is 96 years old and incredibly lives on her own.  My mother drops off packages of food she prepares for my grandmother and gets her mail, but my grandmother still does her laundry and gets herself ready in the morning. Bringing in some help for her or moving her to an assisted living facility are options, but my grandmother loves her home, sees herself as fiercely independent, and a change would be difficult for her at this age. Lately, however, it has been getting tougher for m