I think these feedback loops are great things - I've seen them implemented in a couple finance managers (ie. how does your spending compare to your demographics?). As for the energy - I think home appliances (washing mashine, dishwasher, dryer) still may contribute a huge part of the bill - even more so with 3 kids (I think a very efficient washer or dishwasher uses around 1 kWh per cycle, a condensing dryer with heat pump probably 2kWh- the older generations can easily eat 5 kWh per cycle). And I wouldn't underestimate all the gadgets on standby - I've seen some of these take ~20 W - that alone is 15 kWh per month