Some of the convents were successful in conserving their wealth.
Dams were built in several western states for conserving the water-supply in dry regions.
There are various aspects about winter camping but the most important is conserving body heat.
Hillel is especially noted for the fact that he gave a definite form to the Jewish traditional learning, as it had been developed and made into the ruling and conserving factor of Judaism in the latter days of the second Temple, and particularly in the centuries following the destruction of the Temple.
Households who grow a lot of fruit and vegetables will also find collecting and conserving rain water useful.
