In addition to recycling plastic bottles and jugs for watering slowly, try to recycle your waste water for the garden. Water collected in rain barrels, or water from the bath or laundry can be used in the garden.
Gutterless Rain Barrel – a “Drain Barrel” for those of you who may not have gutters on your house. This project is most useful for those of us who have a clearly-defined gouge in our wood chips where the water pours off the roof. This would be also great to remember if you build a more permanent survival shelter…. Or at your bug out location