Write it down

An elderly couple is beginning to notice that neither of them seem to be able to remember things as well as they used to. So, they go to see their doctor, who explains that there is nothing really wrong with, just typical memory loss associated with old age. He suggests that they each get notebooks and write notes to themselves to help remember things. The couple goes home and that evening while watching T.V. the man gets up and heads for the kitchen.
His wife asks if he can bring her some ice cream when he returns. He says he will, and she says he should write it down.
"I’m just going to the kitchen, I'll remember."
"Well, I want that with nuts, too."
"O.K. he says ice cream with nuts." She asks again if he's going to write it down.
"No, I'm just going to the kitchen."
"And a Cherry on the top?"
He agrees and turns toward the kitchen again and she asks again about writing it down. Now the old man is angry, "Look, old lady I'm not senile, I can remember ice cream with nuts and a cherry on top."
He goes in the kitchen for 10 minutes and when he returns he sets a plate of bacon and eggs in front of his wife. She looks up and says, "Honey, you forgot my toast."