You should place a picture of Tara so you can die looking at it. Play mantras constantly, until you die. Ask someone to read the Heart Sutra and prayers to you, so you can hear them before you die.
Later, the woman died with her eyes open, facing the image of Tara that Rinpoche had given her. The resident teacher at the FPMT center that she attended told her that the main practice she should do was to keep her mind peaceful. This teacher, a Tibetan geshe, went to visit her the night before she died, and commented that no one would be afraid of dying if they could see her. The woman was calm and upbeat as she said goodbye to people the day before she died. One of the last things she told her daughter was that it was all very clear, and that she felt good.