Heh, been there done that with two of our sibs. They are also the ones who owe Mama money; money that would have made her time at home much more comfortable, and possibly could have let her stay at home a little longer. Not surprising, huh?
Do take advantage of the Aging Services. They may have a volunteer program; other elderly who are interested in coming by to just visit and spend time. The ladies who came to see Mama were very nice, but she was still in her 'pi$$ed at us' stage, so she wasn't in the mental frame of mind to enjoy them. This was a result of the Alzheimers because she had always loved company.