You need to take a close look at your electricity rates and how it works with your electric bill. Start by reviewing the last 6 months' bills. First, read the bill carefully. Then, compare the number of kilowatt-hours used with how much the bill amount is.
Special rate plans
If the kilowatt-hours stay proportional to the total bill, then you are using more electricity.
If the bill goes up a lot more than the kilowatt-hours, then you are on some sort of "rate plan" that punishes peak usage. That is done because peak usage is the most expensive for the power company to produce: they have to spin up power plants that don't get used all year except for this. (And the bank wants the mortgage paid all year).
The #1 reason for usage to go up "in the last few months" (read: summer) is air conditioning usage. Air conditioners are big users of electricity, and they run quite a lot.
If that does not explain it, look for problems that would cause energy use. If your water heater is electric, you may have a hot water leak.
You can read up on methods for using your electric meter as a load rate measuring device. That will let you observe rate of electricity use when various appliances are operating. You can also shut off loads at the breaker panel for testing, to see the effect it has.
If you want to really automate it, you can get products like the "Sense". They involve equipment that sits in your service panel and collects data about usage of many appliances. You can then generate reports showing which equipment is using how much power.