Tina,
I have been sending that website info to all my chocoholic friends. Next time I get to London, I will definitely go in & breathe deeply. I'll tell my husband to avert his eyes while I'm buying chocolates. Poor baby doesn't respond well to high prices!
On a more serious note, the time of day confusion is quite common. My mother has done that for several phases. I take it your uncle will not have your aunt go for respite or eventually go into a nursing home? Is there perhaps a support group in his area he can go to once in a while? He may not be up on computers so TP probably wouldn't work for him but a good old-fashioned support group in the flesh is wonderful. And there's nothing like getting advice from people who REALLY know about AD, if only to make one realize one's not alone on the good ship Alzheimer.
Joanne