Great suggestions so far. It might be hard to find brand new ITPs since they've been discontinued, but modified designs can now be found under Olight.
For general or emergency use around the house, I'd recommend clickies with very simple interfaces and commonly-found batteries. Family members might find the average flashaholic flashlight too complicated and end up lighting a candle lol.
keychain lights: Olight i3 or i2, Eagletac D25A, Fenix E05
for the house: Fenix LD10, LD20, or E21; and a Zebralight SC51 (might be too small to keep in the emergency supplies cupboard but it would be nice as your personal all around light)
to use outdoors or light up a considerable sized backyard: Olight S35