Ambient light is nice and cozy, not to mention pretty resourceful in a time of need. In the event that you’re in an emergency situation where you don’t have power, lanterns and candles are handy but they both either burn out or require fuel. It would be great to have several options for lighting for backup, and in case you need to hit the road in a SHTF situation.
On Dip Feed there is a simple, fun tutorial on how to make your own luminaries with just water balloons and paraffin wax. These are super cheap luminaries, and you can make them as big and thick as you like. Paraffin wax gives a nice soft glow, and these luminaries are easily portable for cases where you have to hit the road. Even better, try using solar tea light candles as your light source!