Answer:

wastenotwantnot

Answer	Crossword Clue
WASTENOTWANTNOT	Proverbial advice
WASTENOTWANTNOT	Conservationist's credo
WASTENOTWANTNOT	Thrifty maxim

WASTENOTWANTNOT	Aphorism against extravagance
WASTENOTWANTNOT	Admirable precept
WASTENOTWANTNOT	Saw
WASTENOTWANTNOT	Parsimonious proverb
WASTENOTWANTNOT	Principle of economy
WASTENOTWANTNOT	Principle of conservation
WASTENOTWANTNOT	Saw about frugality