what is the easiest way to remember how to work out energy consumption?

Question: what is the easiest way to remember how to work out energy consumption?
- Keywords:
  consumption,
  energy
Asked by csihoff69 to Sam, Mario on 13 Mar 2012.
- Sam Vinko answered on 13 Mar 2012:
  
  Use the power of whatever you are using (generally quoted in KWatts, or 1000 Watts), multiplied by the time you use it for in hours, and that will give you the total energy used (in kWh).

Question: what is the easiest way to remember how to work out energy consumption?