Inspect your appliances 

Keep an eye out for leaks and drips, as these pile up quickly over time. Toilets, faucets and water softener are most likely to spring leaks.  Do you ever have to jiggle the handle? Hear water running in the night? Toilets are a big culprit in high water usage. A small leak from the tank into the bowl can go unnoticed until you get your bill.

Water Softeners

Watch you water softener. Softeners use water when they regenerate, but if it is regenerating too often it can increase you water usage.