Possible Clues:

• Use up quantities of, reduce store
• Empty, reduce, exhaust
• Strike out, dropping penny in drain
• Exhaust the supply of
• Cut round opening in pine to get sap
• Reduce the numbers allowed to go in deep when swimming
• Spend penny - allowed to go into river!
• Reduce pressure and scrub round
• Reduce (amount of supplies etc)
• Reduce the quantity of (resources)